Question 325: Thermodynamics & KTG

Question

The P-V diagram of a diatomic ideal gas system going under cyclic process as shown in figure. The work done during an adiabatic process CD is (use $$\gamma$$ = 1.4) :

Accepted Answer

Adiabatic process is from C to D
$$WD = {{{P_2}{V_2} - {P_1}{V_1}} \over {1 - \gamma }}$$
$$ = {{{P_D}{V_D} - {P_C}{V_C}} \over {1 - \gamma }}$$
$$ = {{200(3) - (100)(4)} \over {1 - 1.4}}$$
= $$-$$500 J

Answer

$$-$$500 J

Answer

$$-$$400 J

Answer

400 J

Answer

200 J

Thermodynamics & KTG

The P-V diagram of a diatomic ideal gas system going under cyclic process as shown in figure. The work done during an adiabatic process CD is (use $\gamma$ = 1.4) :

Choose the correct answer: