Calculate the internal energy of a system (in kiloJoules) that loses 8.54 kJ while expanding from 1.0 to 24.42 L against a pressure of 35.08 atm. Answer to one decimal space.
The work performed by the system is calculated:
W = P * ΔV = 35.08 atm * (24.42 - 1) L = 815.26 atm * L
We calculate in kilojoules:
W = 815.26 atm * L * (0.101325 kJ / 1 atm * L) = 82.61 kJ
The internal energy change is calculated:
ΔU = Q - W = 8.54 - 82.61 = - 74.07 kJ
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Calculate the internal energy of a system (in kiloJoules) that loses 8.54 kJ while expanding from...