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Introductory Chemistry: A Foundati...
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Introductory Chemistry: A Foundati...
trong>Exercise 14.1 Calculate the total energy required to melt
Interpretation:
The total energy required to melt 15g of ice at 0° C, heat the water at 100° C and vaporize it to steam at 100° C should be calculated.
Concept Introduction:
The amount of heat energy needed to melt 1 g of ice at 0° C is known as the heat of fusion. The value of heat of fusion of ice is
The amount of heat energy needed to increase the temperature of a given mass of water is calculated by the following equation:
Heat energy needed =
Here,
The amount of heat energy needed to vaporize 1 g of water at 100° C is known as the heat of vaporization. The value of heat of vaporization of water is
Mass of ice at 0° C = 15 g
The amount of heat energy needed to melt 15 g of ice at 0° C
The amount of heat energy needed to increase the temperature of 15 g water from 0° C to 100° C
The amount of heat energy needed to vap
Chapter 14 Solutions
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