------------------------------------------------- A material with a high thermal
ID: 2076712 • Letter: #
Question
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A material with a high thermal conductivity...
...stores a lot of heat.
...requires a lot of heat to change its temperature.
...has a high thermal energy.
...changes its temperature easily.
...transfers heat quickly.
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It takes about 4200 space straight J of heat to increase the temperature of 1 space kg of water by 1 space straight K .
How much heat is required to take 3.8 space kg of room temperature water (25 degree straight C ) to its boiling point at 100 degree straight C ?
1.2 cross times 10 to the power of 6 space straight J
1.6 cross times 10 to the power of 6 space straight J
6.0 cross times 10 to the power of 6 space straight J
5.6 cross times 10 to the power of 6 space straight J
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A material with a low heat capacity...
...transfers heat slowly.
...requires little heat to change its temperature.
...has a low thermal energy.
...does not change its temperature easily.
...stores very little heat.
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Explanation / Answer
Accoridng to the given problem,
1.)A material with a high thermal conductivity,
Answer: transfers heat quickly
2.) We know that,
Q = mcT
Q = 3.8*4200*(100-25)
Q = 1.2 *106J
3.) A material with a low heat capacity,
Answer: requires little heat to change its temperature.
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