Interpretation: To assess the alteration in physical properties of water by heating.
Concept Introduction: Increase in temperature alters the physical properties of water in a bath tub. The energy required to change the temperature of water by one degree is the specific heat of water. The numerical value of specific heat of water is 4.186 joules/g or 1cal/g . Using the specific heat water, the energy required to change the temperature to specified values is calculated.
Given: The tub contains 450 gal of water. This amount of water is heated to 105°F. The change in physical properties and energy required to change the temperature is needed to be calculated.
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