The enthalpy change when 1 g of water is frozen at 0 °C ( _ fus H^ = 1.435 kcal/mol) is _______

MHT CET Chemistry question

The enthalpy change when 1 g of water is frozen at 0 °C ( kcal/mol) is

Answer: (B)

Freezing is the reverse of fusion, so = -1435 cal/mol / 18 g = -79.7, i.e. about -80 cal/g; (c) has

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Question ID VK-064468