Question 369: 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 T1 and T2 (T1 > T2) 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

WAB = WDC

Answer

WAD = WBC

Answer

WBC + WDA > 0

Answer

WAB < WCD

Thermodynamics & KTG

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 $\to B and C \to$ D are T1 and T2 (T1 > T2) respectively.Choose the correct option out of the following for work done if processes BC and DA are adiabatic.

Choose the correct answer: