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A liquid has a vapor pressure of 40 mmHg at 19.0 °C and a normal boiling point of 78.3 °C. What is iStates of Matter Chemistry Question

Question

A liquid has a vapor pressure of 40 mmHg at 19.0 °C and a normal boiling point of 78.3 °C. What is its enthalpy of vaporization in kJ·mol-1?

A.

42.4

✓ Correct
B.

18.4

C.

5.10

D.

1.45

💬
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