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If specific heat of a substance is infin...

If specific heat of a substance is infinite, it means

A

heat is given out

B

heat is taken in

C

no change in temperature whether heat is taken in (or) given out

D

all of the above

Text Solution

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The correct Answer is:
C
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How much heat (in joule) is required to raise the temperature of 205 g of water from 21.2^(@)C to 91.4^(@)C . Specific heate of water is 4.18 J g^(-1) .^(@)C^(-1) Strategy : The specific heat of a substance is the amount of heat required to raise the temperature of 1g of the substance by 1^(@C . Thus Specific heat = (("Amount of heat in joules"))/(("Mass of substance in grams")("Temperature change in" .^(@)C)) Rearrangement gives. Amount of heat (q) = Mass of substance (m) xx Specific heat (c ) xx Temperature change (Delta T)

Assertion : Specific heat of any substance remains constant at all temperatures. Reason : It is given by s= 1/m * (dQ)/(dt) .

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NARAYNA-KINETIC THEORY OF GASES-C.U.Q
  1. The thermal motion means

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  2. Heat required to raise the temperature of one gram of water through 1^...

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  3. If specific heat of a substance is infinite, it means

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  4. Isothermal curves for a given mass of gas are shown at two different t...

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  5. Certain amount of heat supplied to an ideal gas under isothermal condi...

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  6. The temperature range in the definition of standard calorie is

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  7. The pressure p for a gas is plotted against its absolute temperature T...

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  8. dU+dW=0 is valid for

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  9. In a given process on an ideal gas, dW=0 and dQlt0. Then for the gas

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  10. A piece of ice at 0^@C is dropped into water at 0^@C. Then ice will

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  11. The temperature determines the direction of net change of

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  12. The direction of flow of heat between two bodies is determined by

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  13. Heat is absorbed by a body. But its temperature does not raised. Which...

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  14. Zeroth law of thermodynamics gives the concept of

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  15. We need mechanical equivalent of heat because

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  16. If an electric fan be switched on in a closed room, will the air of th...

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  17. Which type of motion of the molecules is responsible for internal ener...

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  18. The internal energy of a perfect monoatomic gas is

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  19. The internal energy of a perfect monoatomic gas is

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  20. Which of the following is constant in an isochoric process?

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