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Answer a) Sponge is a solid still it can be compressed as it has air spaces between them and air is filled in those air spaces, so when we compress the sponge the air is expelled out of those spaces and hence the sponge is compressed and when we release it, it attains it's initial position as the air is again filled in those spaces. Solve any question of States Of Matter with:- the external force = -restorative force. (iii) Sponge though compressible is a solid. Define velocity and acceleration. Why is a sponge considered a solid when it can be compressed like gases or liquids? When it is compressed, the air in the holes is squeezed out. 1) Comment on the following statements. The sponge is not a crystalline solid. This makes it lighter in volume. gravity constant . try drawing a free body dia, resolve the (couple)forces into their components, you will find they cancel. Why sponge though compressible is a solid? b) Clothes dry faster on a windy day. pressure = density . 2.a) Enumerate the changes that take place inside the matter during the change of states. - As we have seen, a sponge regains its shape and mass remains the same after the compression. Gases are highly compressible. We need a . Rubber band changes its shape under the influence of force and regains the shape when the force is removed. The sponge is not a crystalline solid. Give reasons(a) A gas fills completely the vessel in which it is kept. (b) Rate of evaporation of an aqueous solution decreases with increase in humidity. However all its other characteristics is representing solid-state of matter & hence it is considered a solid. (c) Sponge though compressible is a solid. 6. . Question 27. So the deeper you go, the more pressure, but the density of water will remain the same. So when pressure is applied those porosities or holes are pressed. ( CCE 2012) 3. Therefore, it is compressible even if it is solid. … Hence it is a solid. b) When a solid melts,its temperature remains the same.Give reason. These pores make the sponge a soft material. it is still considered as a solid because it has a definite volume and shape does not changes unlesss compressed. When it is compressed, the air in the holes is squeezed out. We can regard rubber band as a solid, because it regains its shape when the stretching force is removed from it. Why does the temperature of a substance remains constant during its melting point or boiling point. Answer: Latent heat of fusion is the amount of heat energy required to change 1 kg of solid into liquid at its melting point. The melting point of ice is 273.16 K*. (b) Water is a liquid and liquids take up the shape of any container in which these are kept. Answer: Gases spread more easily than liquids because the molecules of the gas are very loosely packed. Best answer Sponge has minute pores in which air can be trapped, when pressed the air is expelled out and so it is compressible. The sponge has multiple holes, which can be referred to as air cavities, in which air can be trapped and expelled when the sponge is compressed. a) A sponge is a solid but can be easily compressed. This makes it lighter in volume. It has minute holes, in which air is trapped and when pressed the air is expelled out and hence we are able to compress it easily. Answer: A sponge is considered solid even when it can be compressed like gases or liquids because its compression is because of the presence of minute air holes or cavities filled with air rather than the solid matter it has in its structure. (e) Sugar crystals dissolve faster in hot water than cold water. (b) Rate of evaporation of an aqueous solution decreases with increase in humidity. The rate of diffusion of liquids is higher than that of solids. Compressibility: Actually, the constituent particles are so closely packed in a solid that they either do not come closer or do so only slightly when a high pressure is applied. Suggest Corrections. Why a sponge is called a solid even it can be compressed? Sponge though being a solid can be compressed with hands. Which of the following represent non flowing seeded plant Answer & Earn Cool Goodies. Answer. Share with your friends 1 Follow 1 Fariha, added an answer, on 4/7/12 Solid, liquid and gas are the three states of matter. Answer: (a) Evaporation of a liquid at room temperature leads to a cooling effect. height. While compressing the air is exhaled out from . [NCERT Exemplar] Answer: (a) Evaporation produces cooling as the particles at the surface of the liquid gain energy from the When, why an iron needle sinks in water, but a ship made of iron floats on water. Why can a sponge be compressed a solid? . Why? Ans : Sponge has very small holes throughout its structure. The melting point of a solid is an indication of the strength of the force of attraction between its particles. flow and solid deformation within a porous medium. But it is an amorphous solid like rubber. Related QnA: because it has fixed shape, size and volume. Define sublimation. Hint: Despite the fact that the sponge is a solid, it is compressible due to the existence of air spaces inside the sponge. Give reasons(a) A gas fills completely the vessel in which it is kept. Why is air compressible? Therefore, a sponge can be considered as solid though it is compressible. COMPRESSIBLITY 3. (d) We can easily move our hand in air but to do the same through a solid block of wood we need a karate expert. (d) We can easily move our hand in air but to do the same through a solid block of wood we need a karate expert. They have really high density and are heavy in nature. Sponge is a porous solid. (c) A wooden table should be called a solid. Solution Verified by Toppr Sponge is a solid state of matter yet it is compressible in nature. Answer: Sponge is a solid with minute pores in it. Anuradha Puri, Meritnation Expert added an answer, on 16/9/13 Sponge contains small pores in which air is trapped.On pressing, this air is expelled leaving the sponge compressible.It is a solid because it has a definite shape and volume and doesnot change its shape unless compressed. A stage is reached when the solid melts and is converted to a liquid. (d) Ice is solid at 0°C, while water is liquid at room temperature. Define latent heat of fusion. . A sponge can be compressed easily but still we count them in solids because they haveminute pores in it which are filled with air. Highly compressible. Justify. Answer: A sponge has minute holes, in which air is trapped, when we press it, the air is expelled out and we are able . Jim Mowreader , Wide-format Printing Expert (2008-present) Sponge is a solid, yet we are able to compress it. Sponge is solid . Sponge though being a solid can be compressed with hands. Answer: A solid has fixed shape, size and volume. When we. Why does the sponge swell? Member since Mar 31, 2017 A sponge can be compressed easily but still we count them in solids because they have minute pores in it which are filled with air. When, why an iron needle sinks in water, but a ship made of iron floats on water. (c) The arrangement of paritcles is less ordered in the liquid state. The temperature at which a solid melts to become a liquid at the atmospheric pressure is called its melting point. When we compress the sponge air is expelled from its holes making it highly compressible when we release it attains its initial position as the air is again filled in those spaces. Answer: (a) The tyre burst because the air inside the tyre got heated and therefore exerted pressure . ?/ COMEENT ON 1. Comment on the following statements: (a) Evaporation causes cooling. Melting Point. compressible = change of density due to pressure. . (v) Sand is a solid at room temperature. (a) Evaporation produces cooling. c) Sponge is undoubtedly a solid as it has definite shape and volume unlike gases and liquids. question_answer. Answer: A sponge is solid but it is compressible because it has tiny holes in which air is trapped.When we compress a block of sponge, the air is expelled out and we are able to compress it. Yet it is solid in nature because there is a force of attraction between the particles of sponge. Sponge has minute holes,in which air is trapped, when we press it,the air is expelled out and we are able to compress it. Originally Answered: A sponge can be compressed but is treated as solid why? 11. These holes are filled with air. 9th Class Science Matter in Our Surroundings. Thus, we are able to compress it. as net force = 0 as a = 0 (equal in mag. Answer. 2. Density is least and diffuse. That's why when we press it the air trapped in the holes comes out. Sponge is compressible because it is having minute pores in which air is trapped .on presssing the air is expelled. The sponge is considered as the solid as it has all other properties possessed by the solid. Why water exist as liquid at room temperature? The air is dispersed in the solid. TABULATE THE DIFFRENCES BETWEEN SOLID, LIQUID AND GAS. (c) Sponge though compressible is a solid. FILLING A GAS CONTAINER. (c) Sponge though compressible is a solid, (d) Ice is solid at 0°C, while water is liquid at room temperature. compressible != pressure. The sponge is an 'aerosol'. It is because volume of ice is more than that of the equal amount of water. Try squeezing a pillow, a tennis ball, or a . 3 Answer (s) Available. IN these holes , air is trapped. For example, a sponge made from some foam or rubber material can be easily compressed. How is it possible? Why? how are the five power points of a multi plug connected Answer & Earn Cool Goodies. These holes are filled with air. (b) At room temperature the forces of attraction between the particles of solid substances are stronger than those which exist in the gaseous state. (c) Sponge is solid but compressible. Look at other objects that are compressible, but seem to be solid. 9. Answer: A sponge has minute holes, in which air is trapped, when we press it, the air is expelled out and we are able . We can easily move our hand in the air but to do the same through a solid block of wood. This is due to the fact that in the liquid state, particles move freely and have greater space between each other as compared to particles in the solid state. Answer: Sublimation is the change of gaseous state directly to solid state without going through liquid state and vice-versa. These holes are filled with air. How is it possible? Answer: A sponge although being a solid has minute pores in it which traps a sufficient amount of air. When we press the sponge the air present in these pores is released out and hence we are able to compress it. in direction) (Newton's 1st law of motion) when in EQUILIBRIUM. Liquids and gases possess fluidity while solids are rigid. A sponge has a definite volume, has a . Physics. Question 7: Although solids are slightly compressible or rigid sponges can be compressed easily, why? At the beginning, water When an external load is applied sponge, the fluid sticks to the hydrophilic polymers that form the sponge— filled pores of the sponge experience a change in pres- a restatement of the fact that the sponge is wettable. But it is an amorphous solid like rubber. When we press the sponge air is expelledfrom its holes making it. (ii) Compressibility : The property due to which the particles of matter can be compressed or reduced in volume by applying force or pressure. Ans : Sponge has very small holes throughout its structure. WHY?? (A)A sponge has minute holes,in which air is trapped, when we press it,the air is expelled out and we are able to compress it. Solid cannot be compressed too much. a sponge has minute holes,in which air is trapped, when we press it,the air is expelled out and we are able to compress it.sponge is a porous solid.but in other words the property of compressibility means an object is commpresed and it remains in that compressed shape until we apply force to get it back to its normal position and when we compress … (a) A sponge is a solid but can be easily compressed. opp. b) Clothes dry faster on a windy day. ALTHOUGH SPONGE IS A SOLID, BUT THEN ALSO IT CAN BE COMPRESSED. b) When a solid melts,its temperature remains the same.Give reason. Question. ( CCE 2012) 3. Then the space of air is occupied by the sponge, which causes it to shrink. Question Sponge is a solid, yet we are able to compress it. The solids are incompressible. Because the sponge is not sealed, some of the gas also escapes, but if you cut a piece of sponge and put it into the syringe, it would still compress. It changes its shape only ,when an external force is applied. Sponge has very small holes throughout its structure. Jeanne Paquette , 20+ Years Teaching Invertebrate Paleontology at McGill University Why does the temperature of a substance remain constant during its melting point or boiling point? The solids are incompressible. Solution: When a substance melts, it absorbs heat for the conversion of solid state into liquid . how are the five power points of a multi plug connected Answer & Earn Cool Goodies. Water at room temperature is liquid due to the presence of hydrogen bond. Question. Define velocity and acceleration. The sponge is considered as the solid as it has all other properties possessed by the solid. Thus, we may conclude that solids, liquids, and gases can diffuse into liquids. c) Smell of perfume travels a few yards away. This is because of space/Interparticle space between the particles of sponge. That is why it seems to be compressible. But sponge have some pores in it, where air is trapped. The sponge is an 'aerosol'. a) A sponge is a solid but can be easily compressed. 3. 10. (c) What value of Adil is reflected in the above act? (b) Gases spread more easily than liquids. Scent consists of a number of sweet smelling gases or vapours. 3 Answer (s) Available. A sponge can be compressed easily but still we count them in solids because they haveminute pores in it which are filled with air. When we tried to squeeze the sponge, the trapped air leaks out. However, there are some exceptions. And one more thing, bulk stress, and pressure are scalar quantities. As opposed to air, for example, which is why the air pressure is exponential with respect to height, and not linear as is the case in . A sponge has a definite volume, has a . Now sponge is polymer and flexible. (b) A gas exerts pressure on the walls of the container. A sponge is a solid. Answer: For the three characteristics of matter and their examples, (a) Spreading of smell of scent in a room is because of diffusion of the gases. 2.a) Enumerate the changes that take place inside the matter during the change of states.

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