Ok, so I know I already posted another really long question but we have not learned this yet and are expected to do homework on it. Please help me.

An ideal monotonic gas is compressed at a constant pressure of 0.9 atm from 14 L to 3.5 L.
Note: Atmospheric pressure is 1.013x105 Pa.
By how many cubic meters is the volume reduced?

What is the work done on the gas?

What was the change in the internal energy of the gas?

How much heat was added to the gas during the compression?