We’re being asked to calculate the work for the system if 1 mole of ideal gas expanded from a volume of 1.00 L to a volume of 8.41 L against a constant external pressure of 1.00 atm.
Recall that work (w) is given by:
P = pressure (in atm)
ΔV = Vfinal – Vinitial = change in volume (in L)
Also note that if work is:
• (+): work is done by the surroundings to the system (compression)
• (–): work is done by the system to the surroundings (expansion)
One mole of an ideal gas is expanded from a volume of 1.00 liter to a volume of 8.41 liters against a constant external pressure of 1.00 atm. How much work (in joules) is performed on the surroundings? Ignore significant figures for this problem. (T= 300 K: 1 L•atm = 101.3 J)
A. 375 J
B. 751 J
C. 225 x 103 J
D. 852 J
E. none of these
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