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Specific heat of a substance can be...

Specific heat of a substance can be

A

Finite

B

Infinite

C

Zero

D

Negative

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Specific heat of a substance at m.pt. or b.pt. for isothermal process and specific heat of a substance during adiabatic change respectively are:

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Explain what is meant by specific heat of a substance. What are its units? How is molar specific heat different from specific heat?

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)

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PHYSICS GALAXY - ASHISH ARORA-HEAT AND THERMAL EXPANSION-ADVANCE MCQs WITH ONE OR MORE OPTIONIS CORRECT
  1. Two identical beakers with negligible thermal expansion are filled wit...

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  2. Thermal capacity of a body depends on the

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  3. Specific heat of a substance can be

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  4. When two samples of finite specific heats at different temperatures ar...

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  5. Which of the following statements are true?

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  6. A metal rod is shaped into a ring with a small gap. If this is heated,...

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  7. Two rods of length L(1) and L(2) are made of materials of coefficients...

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  8. A bimetallic strip is made up of two metals with different alpha

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  9. A bolt is passed through a pipe and a nut is just tightened. Coefficie...

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  10. A unifom cylinder of steel of mass M radius R is placed on frictionles...

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  11. A bimetallic strip is formed out of two identical strips one of copper...

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  12. A body of mass m has gram specific heat c:

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  13. A thermos flask contains coffee. It is vigorously sheken, considering ...

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  14. The temperature of an isotropic cubical solid of length L, density d a...

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  15. Specific heat of a substance can be

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  16. 5g of steam at 100^(@)C is mixed with 10g of ice at 0^(@)C. Choose cor...

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  17. The temperature of an isotropic cubical solid of length l(0), density ...

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  18. A pressure cooker reduces cooking time because

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  19. There is a rectangular metal plate in which two cavities in the shape ...

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  20. A temperature T is measured by a constant volume gas thermometer (i)...

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