Concept explainers
Interpretation:
give reason why aluminum chair feels hotter than wooden bench in sunlight.
Concept introduction:
Metals are generally good conductors of heat while non metals are heat insulators.
Answer to Problem 86A
Aluminum chair is hotter to sit than a wooden bench because aluminum is a good conductor of heat and it absorbs more heat in the same period of time as compared to wooden bench which is a poor conductor of heat.
Explanation of Solution
The better a substance is at conducting heat the more heat it will absorb in the given period of time. Aluminum is a metal which is good conductor hence the chair made of aluminum gets heated up faster.
Aluminum being a good heat conductor heats up faster and the aluminum chair, therefore feels hotter.
Chapter 20 Solutions
Chemistry: Matter and Change
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