1. How much heat energy, in kilojoules, is required to convert 74.0 g of ice at −−18.0 ∘C to water at 25.0 ∘C ? 2. How long would it take for 1.50 mol of water at 100.0 ∘C to be converted completely into steam if heat were added at a constant rate of 21.0 J/s ?

1. How much heat energy, in kilojoules, is required to convert 74.0 g of ice at −−18.0 ∘C to water at 25.0 ∘C ? 2. How long would it take for 1.50 mol of water at 100.0 ∘C to be converted completely into steam if heat were added at a constant rate of 21.0 J/s ?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter10: Liquids And Solids

Section: Chapter Questions

Problem 99E: The molar heat of fusion of sodium metal is 2.60 kJ/mol, whereas its heat of vaporization is 97.0...

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Question

1. How much heat energy, in kilojoules, is required to convert 74.0 g of ice at −−18.0 ∘C to water at 25.0 ∘C ?

2. How long would it take for 1.50 mol of water at 100.0 ∘C to be converted completely into steam if heat were added at a constant rate of 21.0 J/s ?

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