Calculate the enthalpy change when 245 g of ice melts. Strategy The H fus value in Table
Question:
Calculate the enthalpy change when 245 g of ice melts.
Strategy The ΔHfus value in Table 9.3 is in J/mol, so the amount of ice must be converted into moles. Multiplying the number of moles by ΔHfus will provide the desired quantity.
Table 9.3
Transcribed Image Text:
Standard molar enthalpies and temperatures for phase changes of water Phase Change Transition Temperature AH (J/mol) Fusion 0°C 6009.5 Freezing 0°C -6009.5 Vaporization 100°C 40,700 Condensation 100°C -40,700
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Analyze Your Answer The enthalpy of fusion is constant at 6 kJmol so the enthalpy change depends on ...View the full answer
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Chemistry For Engineering Students
ISBN: 9780357026991
4th Edition
Authors: Lawrence S. Brown, Tom Holme
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