Given the following data, determine the mixture enthalpy at 300 K and 0.1 MPa for a system that contains 5 moles of component (1) and 15 moles of component (2):
A. Incorrect. You cannot use pure component properties to solve for the solution enthalpy directly.
B. Incorrect. You cannot use pure component properties to solve for the solution enthalpy directly. You also made an arithmetic mistake.
C. Correct. Using Equation 9.43 and the partial molar properties gives the correct answer. The pure component enthalpies are not needed.
D. Incorrect. You are probably using the correct solution method, but have made arithmetic mistakes. Carefully check your work and try again.
E. Incorrect. One of these values is the correct mixture enthalpy.
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