Question 311: Thermodynamics & KTG

Question

In the reported figure, there is a cyclic process ABCDA on a sample of 1 mol of a diatomic gas. The temperature of the gas during the process A $$	o$$ B and C $$	o$$ D are T
1
and T
2
(T
1
> T
2
) respectively.
Choose the correct option out of the following for work done if processes BC and DA are adiabatic.

Accepted Answer

Work done in adiabatic process = $${{ - nR} \over {\gamma  - 1}}({T_f} - {T_i})$$
$$	herefore$$ $${W_{AD}} = {{ - nR} \over {\gamma  - 1}}({T_2} - {T_1})$$
and $${W_{BC}} = {{ - nR} \over {\gamma  - 1}}({T_2} - {T_1})$$
$$	herefore$$ $${W_{AD}} = {W_{BC}}$$

Answer

W
AB
= W
DC

Answer

W
AD
= W
BC

Answer

W
BC
+ W
DA
> 0

Answer

W
AB
< W
CD

Thermodynamics & KTG

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