Answer: work is the pressure acting through the change in volume
Explanation:
In the same way that work is defined as force operating over a distance, work is the pressure acting through the change in volume. Pressure is comparable to force in pressure–volume work, while volume is analogous to distance in the classic definition of work.
I'm not sure but I know u is 10^6
If it is lower, it heats faster, if it's higher, it takes longer to heat.
Selection D makes most sense