The heat capacity of air is much smaller than that of liquid water, and relatively modest amounts of heat are needed to change its temperature. This is one of the reasons why desert regions, though very hot during the day, are bitterly cold at night. The heat capacity of air at room temperature and pressure is approximately 21 J K-1 mol-1. How much energy is required to raise the temperature of a room of dimensions5.5 m x 6.5 m x 3.0 m by 10 °c? If losses are neglected, how long will it take a heater rated at 1.5 kW to achieve that increase given that 1 W = 1 J s-1?
The heat capacity of air is much smaller than that of liquid water, and relatively modest amounts of heat are needed to change its temperature. This is one of the reasons why desert regions, though very hot during the day, are bitterly cold at night. The heat capacity of air at room temperature and pressure is approximately 21 J K-1 mol-1. How much energy is required to raise the temperature of a room of dimensions5.5 m x 6.5 m x 3.0 m by 10 °c? If losses are neglected, how long will it take a heater rated at 1.5 kW to achieve that increase given that 1 W = 1 J s-1?
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter12: Thermodynamic Processes And Thermochemistry
Section: Chapter Questions
Problem 13P
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The heat capacity of air is much smaller than that of liquid water, and relatively modest amounts of heat are needed to change its temperature. This is one of the reasons why desert regions, though very hot during the day, are bitterly cold at night. The heat capacity of air at room temperature and pressure is approximately 21 J K-1 mol-1. How much energy is required to raise the temperature of a room of dimensions
5.5 m x 6.5 m x 3.0 m by 10 °c? If losses are neglected, how long will it take a heater rated at 1.5 kW to achieve that increase given that 1 W = 1 J s-1?
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