In this post and its supporting posts, we will solve a set of **Calorimetry Numericals for class 10**. The problems are taken from* Selina’s ICSE Class 10 Physics* book. The solution link after each problem will lead you to the solution to the problem.

## Calorimetry Numericals for class 10 ICSE [Selina class 10 physics solution]

Question: 1

By imparting heat to a body, its temperature rises by 15^{0}C. What is the corresponding rise in temperature on the Kelvin scale?

See the **Solution**

Question: 2

(a)Calculate the heat capacity of a copper vessel of mass 150 g if the specific heat capacity of copper is 410 J kg-1K-1.

(b)How much heat energy will be required to increase the temperature of the vessel in part (a) from 25^{o}C to 35^{o}C?

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Question: 3

A piece of iron of mass 2.0 kg has a heat capacity of 966 J K-1. Find(i) Heat energy needed to warm it by 15^{o}C, and(ii) Its specific heat capacity in S.I unit.

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Question: 4

Calculate the amount of heat energy required to raise the temperature of 100 g of copper from 20^{o}C to 70^{o}C. Specific heat of capacity of copper =390 J kg-1 K-1.

Question: 5

1300 J of heat energy is supplied to raise the temperature of 0.5 kg of lead from 20^{o}C to 40^{o}C. Calculate the specific heat capacity of lead.

Question: 6

Find the time taken by a 500 W heater to raise the temperature of 50 kg of material of specific heat capacity 960 J kg-1 K-1, from 18^{o}C to 38^{o}C. Assume that all the heat energy supplied by heater is given to the material.

Question: 7

An electric heater of power 600 W raises the temperature of 4.0 kg of a liquid from 10.0^{0}C to 15.0^{0}C in 100 s. Calculate:(i) the heat capacity of 4.0 kg of liquid, and(ii) the specific heat capacity of liquid

Question: 8

0.5 kg of lemon squash at 30^{o}C is placed in a refrigerator which can remove heat at an average rate of 30 J s-1. How long will it take to cool the lemon squash to 5^{o}C? Specific heat capacity of squash = 4200 J kg-1 K-1.

Question: 9

A mass of 50 g of a certain metal at 150° C is immersed in 100 g of water at 11° C. The final temperature is 20° C. Calculate the specific heat capacity of the metal. Assume that the specific heat capacity of water is 4.2 J g-1 K-1.

Question: 10

45 g of water at 50^{o}C in a beaker is cooled when 50 g of copper at 18^{o}C is added to it. The contents are stirred till a final constant temperature is reached. Calculate the final temperature. The specific heat capacity of copper is 0.39 J g-1 K-1 and that of water is 4.2 J g-1 K-1. State the assumptions used.

Question: 11

200 g of hot water at 80^{o}C is added to 300 g of cold water at 10^{o}C. Neglecting the heat taken by the container, calculate the final temperature of the mixture of water. Specific heat capacity of water = 4200 J kg-1 K-1.

Question: 12

The temperature of 600 g of cold water rises by 15^{o}C when 300 g of hot water at 50^{o}C is added to it. What was the initial temperature of the cold water?

Question: 13

1.0 kg of water is contained in a 1.25 kW kettle. Calculate the time taken for the temperature of water to rise from 25° C to its boiling point 100° C. Specific heat capacity of water = 4.2 J g-1K-1.