IB A15.3 Thermodynamics

A. For process XA, find the temperature at A, and the W, dU, and Q. [3]

T = 2580 K, W = 4000 J, dU = 6000 J
Q = 10,000 J

B. For process XC find the W, dU, and Q. [3]

dU = -789.606 J, W = +789.606 J, Q = 0
(Pc = 5.4719E4 Pa, Tc = 147.05 K)

C. For process XD find the temperature at D, and the W, dU, and Q. [2]

Td = 53.75 K, W = 0, dU = -1050 J
Q = -1050 J

D. For process XB the work done is 1288 J. Find the pressure at B, and the W, dU, and Q. [2]

Pb = 1.6E5 Pa, W = +1288 J, dU = 0,
Q = +1288 J