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

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)

A) 0.0 kJ
B) 3.6 kJ
C) 7.2 kJ
D) -3.6 kJ
E) -7.2 kJ

Correct Answer:

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