**Volume is in increments of 2 m^3 QUESTION At the completion of one full cycle,
ID: 1985248 • Letter: #
Question
**Volume is in increments of 2 m^3
QUESTION At the completion of one full cycle, find the following...
(a) Net work done by the system.
Answer: 300 kJ (solved it like the area of a triangle)
(b) The net change in internal energy of the system.
Answer: ? kJ
(c) The net heat absorbed by the system.
Answer: ? kJ
NOTE: I know the relationship between the three is dU=Q-W, where dU is change in energy, Q is heat, and W is work, so I need help finding only one of the unknown variables and I can figure it out from there! Thanks!
Explanation / Answer
b.
Internal energy is a state function. it depends on initial and final points.
Since the final and initial points are the same , so
U = 0 kJ <----------ans
c.
U = q + w ;
0 = 300 + q ;
q = -300 kJ <-------------ans
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.