Question

6. During one cycle the working fluid in an engine engages in two work
interactions. 15 kJ to the fluid and 44 kJ from the fluid and three heat interactions
two of which are known, 75 kJ to the fluid and 40 kJ from the fluid. Evaluate the
magnitude and direction of the third heat transfer.

Answer 1

Answer:

+64KJ

Step-by-step explanation:

THIS IS AN CLOSED SYSTEM SO, (CYCLIC PROCESS)

Q1+Q2+Q3=W1+W2

Q1 AND Q2 ARE GIVEN SO WE NEED TO FIND Q3

75-15+44-40 =64 KJ

Answer 2

Given: During one cycle the working fluid in an engine engages in two work

interactions. 15 kJ to the fluid and 44 kJ from the fluid and three heat interactions  two of which are known, 75 kJ to the fluid and 40 kJ from the fluid.

The answer is 6KJ