Question

A certain amount of an ideal gas is
taken from state A to state B. one time
by process I and another time by
process it
. If the amount of heat
absorbed by the gas are Q, and Q,
respectively, then
(a) Q, =Q2
(b) Q, <Q
(c) Q, > Q2
(d) Data insufficient
​

Answer 1

dU

1

=dU

2

=dU

3

Q

1

>Q

2

>Q

3

Because

ΔQ=ΔW+dU

Change in internal energy independent of path and work depends on path and the heat required increases as the work done increases.

∴ ΔQ

1

>ΔQ

2

>ΔQ

3