Question

A cylinder containing a gas is lifted from the first floor to the second floor. What is the amount of work done on the gas? What is the amount of work done by the gas? Is the internal energy of the gas increased? Is the temperature of the gas increased?

Answer 1

Explanation:

As a cylinder lifts from the 1st floor to the 2nd floor, the atmospheric pressure on the gas decreases and it expands. Hence the gas is doing some work on its surroundings. The gas work is zero.

We know that

W (gas work done) = $=P \Delta V(+VE)$

Increasing the system's internal energy and temperature may depend on the types of system walls (conducting or isolating ).