Step 1: Use the ideal gas law We know that pV=nRT describes how pressure, volume, and temperature are related for an ideal gas. Step 2: Set up the formula for work at constant pressure When pressure is constant, the work ( W ) done by the gas is: W=p∆V From the ideal gas law, we can find that: p∆V=nR∆T This means the work done is: W=nR∆T Step 3: Insert the given values Number of moles, n=6 Change in temperature, ∆T=20∘C. (This is the same as 20 K for a temperature difference.) Gas constant, R=8.31Jmol−1K−1 Step 4: Calculate the work W=6×8.31×20
