When 3.0 mole of an ideal diatomic gas is heated and compressed simultaneously from 300K, 1.0 atm to 400K and 5.0atm, the change in entropy is (Use C_(P) = (7)/(2)R for the gas)

When 3.0 mole of an ideal diatomic gas is heated and compressed simult

1.	When 3.0 mole of an ideal diatomic gas is heated and compressed simultaneously from 300K, 1.0 atm to 400K and 5.0atm, the change in entropy is (Use C_(P) = (7)/(2)R for the gas)
Answer» `-20 JK^(-)` `-5 JK^(-)` `-15 JK^(-)` `-2.8 JK^(-)` Solution :`DELTA S = nC_(P) "ln" (T_(2))/(T_(1)) nR "ln" (P_(2))/(P_(1))` `= 3 xx (7)/(2) R xx "ln" (5)/(1) = -15`