Determine the amount of sweat evaporated per hour that would be required to remove the same amount of heat produced by a 100 W light bulb. Concept Introduction: Evaporation is the process in which a substance changes from liquid state to a gaseous state. Molecules inside a liquid have certain amount of energies due to their continuous movement which can be altered by external stimuli such as temperature. These molecules on heating gain energy and escape the surface of liquid to transform into vapor state.

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Chapter 12, Problem 112E

Interpretation Introduction

Interpretation: Determine the amount of sweat evaporated per hour that would be required to remove the same amount of heat produced by a 100 W light bulb.

Concept Introduction: Evaporation is the process in which a substance changes from liquid state to a gaseous state.

Molecules inside a liquid have certain amount of energies due to their continuous

movement which can be altered by external stimuli such as temperature.

These molecules on heating gain energy and escape the surface of liquid to transform

into vapor state.

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