Explanation Given info: The power of solar energy is 1.2 kW , the area of the dish is 1 m 2 , the amount of water is 100 g and the initial temperature of the water is 20 °C . Write the expression for the heat absorbed for the process of increasing the temperature of the water from an initial temperature to the boiling point and then converting to steam. Q = m c Δ T + m L v = m c ( T 2 − T 1 ) + m L v = m [ c ( T 2 − T 1 ) + L v ] Here, Q is the total heat absorbed m is the mass c is the specific heat Δ T is the change in temperature T 2 is the final temperature T 1 is the initial temperature L v is the latent heat of vaporization Substitute 100 g for m , 4.19 J/g°C for c , 100 °C for T 2 , 20 °C for T 1 and 2260 J/g for L v to find Q

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ISBN: 9780077862619

Author: KRAUSKOPF, Konrad B. (konrad Bates), Beiser, Arthur

Publisher: Mcgraw-hill Education,

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Chapter 5, Problem 85E

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The time taken for the water to reach 100°C and then boil away.

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Chapter 5, Problem 84E

Chapter 5, Problem 86E

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Chapter 5 Solutions

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The time taken for the water to reach 100 °C and then boil away.

Solution Summary: The author explains the process of increasing the temperature of the water from an initial temperature to the boiling point and then converting to steam.

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The time taken for the water to reach 100°C and then boil away.

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Chapter 5 Solutions