Enter your answer in the provided box. A gas expands and does P-V work on the surroundings equal to 259 J. At the same time, it absorbs 241 J of heat from the surro 18 Answer 1: 18 Question 2 Be sure to answer all parts. A gas expands from 265 mL to 987 mL at a constant temperature. Calculate the work done (in joules) by the gas if it expands (a) against a vacuum. (Answer in 1 Significant Figure) W = 0 Answer 1: J (b) against a constant pressure of 4.00 atm. (Answer in 3 Significant Figures) W = -2.9 0 Answer 2: -2.9 J J

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