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Calculate the internal energy change when 2 moles of water at 0 degrees converts into ice at 0-degree centigrade?(a) 12 KJ per mole(b) 6 KJ per mole(c) 1 KJ per mole(d) 102 KJ per moleThis question was posed to me in a national level competition.My question comes from Thermodynamics in section Thermodynamics of Chemistry – Class 11 |
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Answer» CORRECT option is (a) 12 KJ PER mole Easiest explanation: ENERGY change when 1 MOL of water at 0-degree centigrade changes into ice at 0 degrees in centigrade is 6 kJ/mol, So the internal energy change when 2 moles of water at 0 degrees CONVERTS into ice at 0 degrees is 12 kJ/mole. |
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