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2. How long would it take for 1.50 mol of water at 100.0 ∘C to be...

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 15.0 J/s ?

Express your answer to three significant figures and include the appropriate units.

3. How much heat energy, in kilojoules, is required to convert 31.0 g of ice at −18.0 ∘C to water at 25.0 ∘C ?

Express your answer to three significant figures and include the appropriate units.

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