An ideal gas has a constant heat capacity of CV* = 75.00 J/mol•K. Initially, a vessel contains 100.0 moles of this ideal gas at 300.0 K. If the enthalpy of the gas is increased by 5000.0 J, what is the final temperature of the ideal gas?
A. 300.6 K
B. 0.6 K
C. 299.4 K
D. 404. K
E. 300.7 K
A. Correct. You must convert heat capacity at constant volume (CV) to heat capacity at constant pressure (CP)to be able to use the enthalpy change.
B. Incorrect. Reread the problem statement.
C. Incorrect. If the enthalpy increased the temperature cannot have gone down.
D. Incorrect. Your temperature change is off by orders of magnitude.
E. Incorrect. You cannot use the constant volume heat capacity directly.
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