Question

List four main effects of heat .explain any two

Answer 1

.i) When heat is supplied to a body its temperature rises: When a material body, solid, liquid or gas, is given heat energy, its temperature increases. When this hot body gives out heat energy its temperature decreases.


(ii) Heat energy may bring about chemical changes in a substance:  When we heat substances, the heat energy breaks the original bonds between the elements and new products with new bonds are formed. For example, if marble (calcium carbonate) is heated, it turns into calcium oxide and carbon dioxide. 

Answer 2

Answer:

answer of main effect of heat