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An ideal gaseous reaction (which is a hypothetical gaseous reaction that conforms to the laws governing gas behavior) occurs at a constant pressure of 45.0 atm and releases 74.5 kJ of heat Before the reaction, the volume of the system was 9.00 L After the reaction, the volume of the system was 2.60 L Calculate the total internal energy change, AE in kilojoules Express your answer with the appropriate units. View Available Hint(s) HA ? ΔΕ = Value Units Submit Previous Answers

State functions versus path functions The change in internal energy, AE, is a state function because it depends only on the initial and final states of the system, and not on the path of change. In contrast, and w are path functions because they depend on the path of change and not just the initial and final states of the system Part C An ideal gas (which is a hypothetical gas that conforms to the laws governing gas behavior) confined to a container with a massless piston at the top. (Eigure 2) A massless wire is attached to the piston. When an external pressure of 2.00 atm is applied to the wire, the gas compresses from 6.40 to 3.20 L When the external pressure is increased to 2.50 atm the gas further compresses from 3.20 to 2.56 L In a separate experiment with the same initial conditions, a pressure of 2.50 atm was applied to the ideal gas, decreasing its volume from 6.40 to 2.56 L in one step. If the final temperature was the same for both processes, what is the difference between a for the two-step process and q for the one-step process in joules? Express your answer with the appropriate units. ► View Available Hint(s) НА ? Value Units Submit