Hot and Cold|Measuring Temperature

Introduction Of Heat|Sources Of Heat|Hot And Cold Object|Tempreature|Thermometer|OMR

Introduction Of Heat|Sources Of Heat|Hot And Cold Object|Tempreature|Thermometer|OMR

A : It is better to wash cloths in hot water than cold water. R : On increasing temperature surface tension of water decreases.

Read the following paragraph and answer the questions. If heat is exchanged between a hot and cold object, the temperature of the cold object goes on increasing due to gain of energy and the temperature of the hot object goes on decreasing due to loss of energy. The change in temperature continues till the temperatures of both the objects attain the same value. In this process, the cold object gains heat energy and the hot object loses heat energy. If the system of both the objects is isolated from the environment by keeping it inside a heat resistant box (meaning that the energy exchange takes place between the two objects only), then no energy can flow from inside the box or come into the box. Which property of the substance is measured using this principle?