How much heat (calories) is required to raise the temperature

[Linzy]

Homework Statement

How much heat (calories) is required to raise the temperature of 20 g water from 15^oC to 95^oC? The specific heat capacity of water is 1.0 cal/g*^oC.

Homework Equations

The Attempt at a Solution

95-15 = 80^oC
80^oC *30 g = 2400 cal.

Is that basically what you have to do? Or is there a more formal equation to use?

 

[mgb_phys]

No - it is that simple.
The definiation of a calorie is the energy needed to heat 1g of water 1deg C - isn't the metric system wonderful!

If you are working in Joules and Kg the equation is Q = mcT Where 'c' is the specific heat capacity - the number of Joules needed to heat 1kg of water by 1deg C.