Which of the following depicts a situation where the least amount of work is done by a sample of gas? [1 atm = 101325 Pa]
a) A 20-L sample of gas expands to 500 L against a vacuum
b) A 1-L sample of gas expands to 30 L against a pressure of 2.22 atm
c) A 1-L sample of gas expands to 30 L against a pressure of 2.22 Pa
d) A 20-L sample of gas expands to 500 L against a pressure of 30 atm
e) Two or more are tied
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