Question: In a certain process, 1.8 x 105 J of heat is liberated by a system and at the same time contracts under a constant external pressure of 9.8 x 105 Pa. The internal energy of the system is the same at the beginning and end of the process.
Part A: Find the change in volume of the system. (The system is not an ideal gas.) in m3.
Please do a step by step solution since I'm kind of lost with this question.