The Specific Heat is the amount of heat required to change a unit mass of a substance by one degree in temperature.
For example, it takes 1 calorie to raise the temperature of 1 gram of water by 1°C. So the specific heat for water is 1 calorie/gram °C = 4.186 joule/gram °C.
Specific Heat Formula can be expressed as where: q is amount of heat energy added. c is specific heat. m is mass. ΔT is change in temperature.
Example 1:Calculate the heat required to raise 500 grams of water from 30°C to 90°C? (Specific Heat of water = 4.186 joule/gram °C)?
Solution: Mass of water m = 500 g, Temperature difference ΔT = 30°C - 90°C = 60°C Specific Heat of water C = 4.186 joule/gram °C