A system expands by 0.72 m^3 at a constant pressure of 112 kPa.
Part A: Find the heat that flows into or out of the system if its internal energy increases by 2865 J.
Part B: Give the direction of heat flow.
Part C: Find the heat that flows into or out of the system if its internal energy decreases by 1850 J.
Part D: Give the direction of heat flow.