In problem 7-3-13 [OLL], assume the heat addition can be modeled as heat transfer from a source

Question:

In problem 7-3-13 [OLL], assume the heat addition can be modeled as heat transfer from a source at 1700oC. Determine
(a) The energy transferred from the reservoir and
(b) The energy rejected to the atmosphere from the engine per unit mass of the gas. Assume the atmospheric conditions to be 100 kPa and 25oC.