A monatomic ideal gas undergoes an isothermal expansion at 300 K,as the volume increased from $0.010 \mathrm {~m} ^ { 3 }$ to $0.040 \mathrm {~m} ^ { 3 }$ The final pressure is $130 \mathrm { kPa } \text {. }$ What is the change in the internal (thermal)energy of the gas during this process? (R = 8.31 J/mol ∙ K)

Question

Quizplus · Accepted Answer

The internal energy of an ideal gas depends only on its temperature. Since the process is isothermal (temperature remains constant), there is no change in the internal energy of the gas.

A Monatomic Ideal Gas Undergoes an Isothermal Expansion at 300 0.010 m30.010 \mathrm {~m} ^ { 3 }0.010 m3

A Monatomic Ideal Gas Undergoes an Isothermal Expansion at 300 $0.010 \mathrm {~m} ^ { 3 }$