List I describes thermodynamic processes in four different systems. List II gives the magnitudes (e…

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List I describes thermodynamic processes in four different systems. List II gives the magnitudes (either exactly or as a close approximation) of possible changes in the internal energy of the system due to the process.
List -IList -II(I) 10-3 kg of water at 100°C is converted to steam at the same temperature, at a pressure of 105 Pa. The volume of the system changes from 10-6 m3 to 10-3 m3 in the process. Latent heat of water = 2250 kJ/kg.(P) 2 KJ(II) 0.2 moles of a rigid diatomic ideal gas with volume V at temperature 500 K undergoes an isobaric expansion to volume 3 V. Assume R = 8.0 J mol-1K-1.(Q) 7 kJ(III) One mole of a monatomic ideal gas is compressed adiabatically from volume V =  and pressure 2 kPa to volume .(R) 4 kJ(IV) Three moles of a diatomic ideal gas whose molecules can vibrate, is given 9 kJ of heat and undergoes isobaric expansion.(S) 5 kJ
Which one of the following options is correct ?

CGP EDU Academic Team · Accepted Answer

The correct answer is C.

(f=6-vibration included)

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List -I	List -II
(I) 10-3 kg of water at 100°C is converted to steam at the same temperature, at a pressure of 105 Pa. The volume of the system changes from 10-6 m3 to 10-3 m3 in the process. Latent heat of water = 2250 kJ/kg.	(P) 2 KJ
(II) 0.2 moles of a rigid diatomic ideal gas with volume V at temperature 500 K undergoes an isobaric expansion to volume 3 V. Assume R = 8.0 J mol-1K-1.	(Q) 7 kJ
(III) One mole of a monatomic ideal gas is compressed adiabatically from volume V = and pressure 2 kPa to volume .	(R) 4 kJ
(IV) Three moles of a diatomic ideal gas whose molecules can vibrate, is given 9 kJ of heat and undergoes isobaric expansion.	(S) 5 kJ

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