Problem

An ideal gas goes through the cycle

abc

. For the complete cycle 800 J of heat flows out of the gas. Process

ab

is at constant pressure and process

bc

is at constant volume. In process

c-a

p \propto V

. States

a

and

b

have temperatures

T_a = 200

K and

T_b = 300

K. (a) Sketch the

p

V

diagram for the cycle. (b) What is the work done by the gas for the process

ca