Question

The gas is first cooled at constant volume until it reaches its
final pressure. It is then allowed to expand at constant pressure
until it reaches its final volume. (Use the following as necessary:
*P*_{1} = 2.90 atm, *V*_{1} = 0.90 L,
and *E*_{int 1} = 451 J and its final state
*P*_{2} = 2.10 atm, *V*_{2} = 2.90 L,
and *E*_{int 2} = 910 J.)

(a) Illustrate this process on a *PV* diagram (Do this on
paper. Your instructor may ask you to turn in this work.) What is
the work done by the gas.

J

(b) Find the heat absorbed by the gas during this process.

J

Answer #1

A monatomic gas is taken through two steps; first its pressure
is increased from P1 to
2.80P1 at constant volume. Then its volume is
increased from V1 to 1.50V1
at constant pressure.
(a) How much heat is transferred to the gas during this entire
process if V1 = 6.92 ✕ 10−3
m3 and P1 = 1.21 atm?
J
(b) How much heat would be transferred during the entire process,
if the gas was a diatomic one?

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