Question
Question: Three moles of an ideal monoatomic gas perform a cycle as shown in figure. The gas temperatures in d...
Three moles of an ideal monoatomic gas perform a cycle as shown in figure. The gas temperatures in different states are T1=400K, T2=800K,T3 = 2400K, T4 = 1200K. The work done by the gas during the cycle will be.
A
20 Kj
B
30 kJ
C
40kJ
D
80kJ
Answer
20 Kj
Explanation
Solution
(1) ® (2) & 3 to 4 V = Constant
W12 & W34 = 0
(2 to 3) & (4) ® 1, P = Constant , W = PDV = nRDT