Tagged: Physical changes

December 21, 2016

Heat changes accompanying physical changes and Explanation of the source of the heat of solution

The calculation of the change in heat content is of a great importance where , the calculation of the change in heat content accompanying the burning of different fuels , helps us during designing...

Chemistry

November 20, 2016

Thermochemistry science, Types of systems & law of conservation of energy

Energy Energy is very important in our life , where we can’t carry out different activities ( mental or muscular ) without the produced energy from burning sugar inside our bodies , we can’t...

The Matter

July 7, 2014

What is the difference between physical & chemical changes?

The Physical and the Chemical changes of the matter The changes that may occur to the matter are the physical changes and the chemical changes. The physical change The physical change is a change...