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I need help with physics question on heat and temperature

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Calculate how much heat is required to bring 113 g of water from a temperature of 26.3°C to a temperature of 100°C. The specific heat of water is 4186 J/kg∙°C.

Mar 18th, 2015

The specific heat tells you the amount of heat per unit mass required to raise the temperature by one degree C.

So we can calculate the amount of heat energy Q required by the formula:

Q = c m T

Where c is the specific heat, m is the mass, T the required temperature. Here:

Q = 4186J/kg∙°C * 0.113kg * 26.3°C (make sure all the units match - mass should be in kg to match the heat capacity unit!)

12440.3734J


Hope this was helpful!

Mar 18th, 2015

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