Through a particular process, the pressure of the gas in a heat engine increases from 1.62×105 Pa to 2.64×105 Pa, while the volume decreases from 3.34×102 m3 to 2.74×102 m3. The pressure-volume graph is a straight line. (a) What is the work associated by the process? Make sure to include the correct sign. (b) Is work done on the system, or does the system does work on its surroundings?