74 L of an ideal monatomic gas is at an absolute pressure of 3 atm when the temperature is 25 C.
(a) How many moles of gas are there?
_____ moles
(b) How many molecules of the gas are there?
(c) The gas expands under constant pressure to twice its original volume. What is the temperature of the gas?
_____ K
(d) In the expansion, how much work is done by the gas?
_____ J
(e) In the expansion, what is the change in the internal energy of the gas?
_____ J
(f) In the expansion, how much heat is added to the gas (positive or negative)?
_____ J