A 1.00-mol sample of an ideal monatomic gas is taken through the cycle shown in the figure. The process A → B is a reversible isothermal expansion where $P_A = 7.0$ atm, $P_B = 1.0$ atm, $V_A = 10.0$ L, and $V_B = 70.0$ L.
P (atm)
5
10
Isothermal
process
B
-V(liters)
50
(a) Calculate the net work done by the gas.
29
X
Your response differs from the correct answer by more than 100%. kJ
(b) Calculate the energy added to the gas by heat.
-29
X
The response you submitted has the wrong sign. kJ
(c) Calculate the energy exhausted from the gas by heat.
-106
X
Your response differs from the correct answer by more than 100%. kJ
(d) Calculate the efficiency of the cycle.
37
X
Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. Carry out all intermediate
results to at least four-digit accuracy to minimize roundoff error.%