Suppose a piece of metal requires 6.80J of heat to raise the temperature by one degree Celsius at constant volume. Calculate the quantity of heat required to raise the temperature of a piece of metal from 20.0°C to 30.0°C.

Solution

Here colon space space straight C subscript straight v space equals space 6.80 space straight J divided by degree straight C we space know space that space straight q space equals space straight C subscript straight v increment straight T Here space increment straight T space equals space straight t subscript straight f space minus space straight t subscript straight i space space space space space space space space space space space space space equals space 30.0 degree straight C space minus space 20.0 degree straight C space space space space space space space space space space space space space equals space 10.0 degree straight C therefore space space space space space straight q space equals space space left parenthesis 6.80 space straight J divided by degree straight C right parenthesis space cross times space 10.0 degree straight C space space space space space space space space space space space space equals 68.0 straight J

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