A gas expands in volume from 32.3 mL to 95.2 mL at constant temperature.

(a) Calculate the work done (in joules) if the gas expands against a vacuum: Enter your answer in scientific notation. (b) Calculate the work done (in joules) against a constant pressure of 3.5 atm: Enter your answer in scientific notation. (c) Calculate the work done (in joules) against a constant pressure of 10.1 atm: Enter your answer in scientific notation.