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1. |
Standard enthalpy of vapourisation DvapHQ for water at 100° C is 40.66 kJmol–1. The internal energy of vapourisation of water at 100°C (in kJmol–1) is (Assume water vapour to behave like an ideal gas) [CBSE AIPMT 2012] |
A. | +43.76 |
B. | +40.66 |
C. | +37.56 |
D. | –43.76 |
Answer» D. –43.76 | |