Selina Concise Physics Class 10 ICSE Solutions Calorimetry Selina ICSE Solutions for Class 10 Physics Chapter 11 Calorimetry Exercise 11(A) 1.Define the term heat. Solution 1. The kinetic energy due to random motion of the molecules of a substance is known as its heat energy. 2.Name the S.I. unit of heat. Solution 2. S.I. unit of heat is joule (symbol J). 3.Define the term calorie. How is it related to joule? Solution 3. One calorie of heat is the heat energy required to raise the temperature of 1 g of water from 14.5oC to 15.5 oC. 1 calorie = 4.186 J 4.Define one kilo-calorie of heat. Solution 4. One kilo-calorie of heat is the heat energy required to raise the temperature of 1 kg of water from 14.5oC to 15.5oC. 5.Define temperature and name the S.I. unit. Solution 5. The quantity which determines the direction of flow of heat between two bodies kept in contact is called temperature. S.I. unit kelvin (K). 6.State three differences betw...
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