This temperature is the melting point of ice. The temperature of the mixture remains constant (0 ☌) till all the ice melts as shown by the line AB. The graph shows what happens when a mixture of ice and water is heated continuously. (Practice Activity Sheet – 1 and 4 March 2019) For the reason, see the information given in the following box.Įxplain the following temperature vs time graph: While deciding the unit for heat, the temperature interval chosen is 14.5 ☌ to 15.5 ☌. While deciding the unit for heat, which temperatures interval is chosen? why? The amount of heat energy required to raise the temperature of a unit mass of an object by 1 ☌ is called the specific heat capacity of that object. How will you prove experimentally that different substances have different specific heat capacities? It is called anomalous behaviour of water. Thus, in the range 0 ☌ to 4 ☌, behaviour of water is different from other substances. In general, when a substance is heated, its volume goes on increasing with temperature. The volume of water goes on increasing in the range 4 ☌ to 10 ☌. If the temperature of water is raised from 0 ☌ to 10 ☌, its volume goes on decreasing in the range 0 ☌ to 4 ☌. Considering the change in volume of water as its temperature is raised from 0 ☌, discuss the difference in the behaviour of water and other substances. When a liquid is getting converted into solid, the latent heat is released. When a liquid is getting converted into solid, the latent heat is………. This is due to difference in their specific heat capacities.Ĭ. If objects of equal masses are given equal heat, their final temperature will be different. The amount of water vapour in air is determined in terms of its absolute humidity.ī. The amount of water vapour in air is determined in terms of its……….

Maharashtra State Board Class 10 Science Solutions Part 1 Chapter 5 Heatįill in the blanks and rewrite the sentences:Ī. Balbharti Maharashtra State Board Class 10 Science Solutions Part 1 Chapter 5 Heat Notes, Textbook Exercise Important Questions and Answers.

Solid converter pdf 10 full crack