1993B5. One mole of an ideal monatomic gas is taken through the cycle abca shown on the diagram above. State a has volume `Va=17×10−3` cubic meter and pressure `Pa=1.2×105` pascals, and state c has volume `Vc=51×10−3` cubic meter. Process ca lies along the 250 K isotherm. Determine each of the following.
a. The temperature `Tb` of state b
b. The heat `Qab` added to the gas during process ab
c. The change in internal energy `Ub−Ua`
d. The work `Wbc` done by the gas on its surroundings during process bc
The net heat added to the gas for the entire cycle 1,800 joules. Determine each of the following.
e. The net work done on the gas by its surroundings for the entire cycle
f. The efficiency of a Carnot engine that operates between the maximum and minimum temperatures in this cycle