Specific heat capacity

Introduction

Energy can be added to or removed from a system without causing a change of state. This obviously has limits, add too much energy to water (liquid) and it will boil (steam). However, water can have its temperature changed from 350 to 450 by the addition of energy without changing state.

Every substance requires a different amount of energy to change its temperature. The way we 'measure' the amount of energy required by different substances is through the use of the concept of specific heat capacity.

The change in temperature depends on the mass of the object, m, the amount of heat transferred to or from the object, Q, and the nature of the material (its ‘specific heat capacity’, c).

videos

Heat Capacity, Specific Heat, and Calorimetry, Professor Dave

Specific heat capacity Fuse School

 

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