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Internal Energy
8. Thermochemistry / Internal Energy / Problem 1

Consider a gas sample is contained in a cylinder with a movable piston, shown below.

Gas in a cylinder with a piston at 1.7 atm pressure, showing a specific state after a thermodynamic process.

A process with ΔH = –24.5 kJ and ΔU = –25.0 kJ is done on the gas sample at constant temperature and pressure. Which image corresponds to the state of the gas after the process?

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