The same mass of a fuel is combusted under constant pressure conditions and again under constant volume conditions. The reaction produces 43.900 kJ of heat in measurement A, and the reaction produces 49.607 kJ of heat in measurement B. Which measurement corresponds to conditions of constant pressure and which measurement corresponds to conditions of constant volume? More information is needed to determine which measurement corresponds to each condition. Measurement B corresponds to conditions of constant pressure and measurement A corresponds to conditions of constant volume. Measurement A corresponds to conditions of constant pressure and measurement B corresponds to conditions of constant volume. A chemical process occurs at constant temperature and pressure within the cylinder. P P Reaction 4.0 L 2.0L Select the sign of the work based on the change in volume of the cylinder after the reaction. Select the sign of the work based on the change in volume of the cylinder after the reaction. negative O positive If the process is endothermic, how does the internal energy of the system in the cylinder change? increase decrease Select the sign of AE (also known as AU) for the system. O positive O negative