Question

A vessel with a movable piston contains 1.90 mol of an ideal gas with initial pressure

*P*_{i} = 2.03 ✕ 10^{5} Pa,

initial volume

*V*_{i} = 1.00 ✕ 10^{−2}
m^{3},

and initial temperature

*T*_{i} = 128 K.

(a) What is the work done on the gas during a constant-pressure
compression, after which the final volume of the gas is 2.50
L?

J

(b) What is the work done on the gas during an isothermal
compression, after which the final pressure of the gas is 5.50
atm?

J

(c) What is the work done on the gas during a constant-volume
process, after which the final pressure of the gas is 5.50
atm?

J

Answer #1

PART A)

Work done at constant pressure is given by

PART B)

Work in isothermal process is given by

PART C)

At constant wolume work done is always ZERO

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