Calculate the work done by 1.00 mol of an ideal gas when it expands from a volume of 14.00 L to a volume of 18.00 L against a constant external pressure of 2.00 atm.

Question

Quizplus · Accepted Answer

The work done by the gas during expansion against a constant external pressure can be calculated using the formula $w = -P_{\text{ext}}\Delta V$, where $P_{\text{ext}}$ is the external pressure and $\Delta V$ is the change in volume. Here, $\Delta V = 18.00\,L - 14.00\,L = 4.00\,L$ and $P_{\text{ext}} = 2.00\,atm$, so $w = -2.00\,atm \times 4.00\,L = -8.00\,L \times atm$.

Calculate the Work Done by 1