A gas in a cylinder is held at a constant pressure of 2.34×105 Pa and is cooled and compressed from a volume of 1.74 m3 to 1.24 m3. The internal energy of the gas decreases by 1.45×105 J.
a. Find the work done by gas.
b Find the absolute value of Q of the heat flow into or out of the gas, and state the direction of the heat flow.
c. Does it matter whether the gas is ideal? why or why not?

graph slopes whilst gas cools, then it is flat whilst conensation to liquid happens, the coolong liquid then graphs as a slope when it solidifies graph is flat

latent heat

there are no components of a physical goal mentioned on the list of choices that you've provided.

conservation of mass

mass before something happens = mass afterwards

the ima (higher than 1m) will be greater than the ima with the height of 1m.