A silver ring has a mass of 138.45 g. how many calories of heat are required to increase the temperature from 11.8 c to 162.5 c?

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04-02-2017
Chemistry

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A silver ring has a mass of 138.45 g. how many calories of heat are required to increase the temperature from 11.8 c to 162.5 c?

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taskmasters taskmasters · Answer 1 · 2017-02-08T12:46:16+01:00

The heat required to raise a certain mass of a substance at a temperature is calculated through the equation,
heat = mass x specific heat x (T₂ - T₁)
The specific heat of silver is 0.057 cal/g⁰C
Substituting the known values to the equation,
heat = (138.45 g)(0.057 cal/g⁰C)(162.5⁰C - 11.8⁰C)
heat = 1189.27 cal