Answer to Question #332318 in Molecular Physics | Thermodynamics for Quân Jason

Question

3.A heat engine makes use of the thermal cycle shown. The working fluid is 3 grams of nitrogen, an ideal diatomic gas. There are two isobaric and two isochoric processes:

p1 = 1×10⁶ Pa, p2 = 2×10⁶ Pa

V1 = 500 cm³, V2 = 1000 cm³.

 

a) What is the temperature, T, of the gas at point 4 (p1, V1)?

A.  T = 120 K

B.  T = 561 K

C.  T = 842 K

b) How much work, Wby, does the gas do in the 1→2 process?

 A.  Wby = -1000 J

B.  Wby = -500 J

C.  Wby = 500 J

D.  Wby = 1000 J

Answer 1

a) B.  T = 561 K

b) C.  Wby = 500 J