Question

0.06 moles of a monatomic gas undergoes the cycle A ⟶B⟶C⟶A as shown on the P-V diagram below.

In the transition A⟶B the gas expands adiabatically and the temperature drops from 600K to 400K. What is △U for this transition? What is the work done on the gas? (This is the answer to (a) in the table below)

During the transition B⟶C, the volume decreases from 2x10^-3 m³ to 1x10^-3 m³ at constant atmospheric pressure (isobaric). What is the work done on the gas? (This is the answer to (c) in the table below)

Use your answers from the previous questions and also fill in the rest of this table:

a) +150 J; (b) -150 J; (c) -100 J; (d) -150 J; (e) 0 J; (f) +300 J

(a) -150 J; (b) +150 J; (c) +100 J; (d) +150 J; (e) -300; (f) 0 J

(a) +150 J; (b) -100 J; (c) -150 J; (d) -100 J; (e) 0 J; (f) +300 J

(a) +300 J; (b) 0 J; (c) -150 J; (d) -150 J; (e) +150 J
Q. W AU A→B 0J (b) B→C -249 J (c) (d) CA 300 J (e) (f)