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A solid ball of metal has a concentric spherical cavity within it. If the ball is heated, the volume of the cavity will

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Important Questions on Thermal Properties of Matter

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Two rods of different materials having coefficients of linear expansion α1,α2 and Young's modulii Y1 and Y2 respectively are fixed between two rigid massive walls. The rods are heated such that they undergo the same increase in temperature. There is no bending of rods. If α1:α2=2:3, the thermal stress developed in the two rods are equally provided. Y1:Y2 is equal to

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300 gm of water at 25°C is added to 100 gm of ice at 0°C. The final temperature of the mixture is
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80 gm of water at, 30°C is poured on a large block of ice at 30°C. The mass of ice that melts is, 
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Heat required in converting 1 g of ice at -10°C into steam at 100°C is
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2gm of steam condenses when passed through 40gm of water initially at 25°C. The condensation of steam raises the temperature of water to 54.3°C. What is the latent heat of steam?
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The temperature of 100gm of water is to be raised from 24°C to 90°C by adding steam to it. The mass of the steam required for this purpose is
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Water falls from a height 500 m. What is the rise in temperature of water at the bottom if the whole energy remains in the water? (Given, the specific heat capacity of water, c=1 cal(g0C)-1)

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Latent heat of ice is 80cal gm-1. A man melts 60gm of ice by chewing in 1 minute. His power is