Explanation Given info: The amount of water is 1 kg , the initial temperature is 20 °C and the heat supplied is 500 kJ . Write the expression for the heat energy required for increasing the temperature of a substance. Q = m c Δ T = m c ( T 2 − T 1 ) Here, Q is the heat required c is the specific heat of the substance Δ T is the change in temperature T 2 is the final temperature T 1 is the initial temperature Solve for T 2 . T 2 = Q m c + T 1 Substitute 500 kJ for Q , 1 kg for m , 4.19 kJ/kg ⋅ °C for c , 20 °C for T 1 to find the final temperature of water. T 2 = 500 kJ ( 1 kg ) ( 4.19 kJ/kg ⋅ °C ) + 20 °C = 139 °C If the final temperature of water is 100 °C , the amount of heat required to raise the temperature of the water from 20 °C to 100 °C is obtained as, Q = ( 1 kg ) ( 4

16th Edition

ISBN: 9780077862619

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

Publisher: Mcgraw-hill Education,

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Calorimetry

Measuring the heat transferred during chemical reactions or other physical processes is known as calorimetry. It comes under the branch of thermochemistry.

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Chapter 5, Problem 83E

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The final temperature of the water and the amount of steam produced if the final temperature is 100°C.

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Chapter 5, Problem 82E

Chapter 5, Problem 84E

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The final temperature of the water and the amount of steam produced if the final temperature is 100 °C .

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