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70 cal of heat is required to increase t...

70 cal of heat is required to increase the temperature of 2 mol of an ideal diatomic gas at constant pressure from `40^(@)C` to `45^(@)C`. How much heat will be required to increase the temperature of that gas by the same amount at constant volume? `R = 2 cal cdot mol^(-1) cdot K^(-1)`.

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The correct Answer is:
50 cal
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CHHAYA PUBLICATION-FIRST AND SECOND LAW OF THERMODYNAMICS-Exercise - Problem Set - II (Marks 3 or 4)
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  3. 70 cal of heat is required to increase the temperature of 2 mol of an ...

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  4. What will be the change in internal energy of 128 g of oxygen gas at c...

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  5. What will be the increase in temperature if dry air at 27^(@)C is comp...

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  6. The tyre of a motorcar bursts suddenly when air was being pumped in it...

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  7. Calculate the amount of work done, if 20 g of hydrogen gas is compress...

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  8. Some amount of gas at 27^(@)C is suddenly compressed to 27 times its ...

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  9. In an adiabatic process where pressure is increased by 2/3%, if (Cp)/(...

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  10. The volume of air increases by 2% in its adiabatic expansion. Calculat...

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  11. Air at 27^(@)C and 128 atm pressure is filled in a container in resear...

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  12. Equal volume of mono atomic and diatomic gases of same initial tempera...

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  13. A steam engine delivers 5.4 xx 10^(8)J of work per minute and services...

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  14. A reversible heat engine converts 1/6 th of heat, which it extracts fr...

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  15. What will be the specific heats of helium at constant volume and const...

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  16. The mass of 1 L of air at STP is 1.293 g. If c(v) = 0.169 cal cdot g^(...

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  17. The initial volume of a gas is 1 L and the pressure is 16 atm. Due to ...

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  18. An ideal gas is compressed adiabatically to 1/4 th of its initial volu...

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  19. A cylinder with a movable piston contains 3 moles of hydrogen at stand...

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  20. The relation between internal energy U, pressure p and volume V of a g...

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