Calorimetry

Appeared in 11 of the 11 available papers.

Examined in

11 of 11 papers

Appears almost every year — treat as core

Typically worth

12.3 marks

Average per paper it appears in · 135 marks in total

Usual form

Short answer

43% of this chapter's 86 questions

Needs a diagram

10%

9 questions carry a figure — practise drawing them

Question-type distribution

Short answer37
Numerical16
MCQ11
Reasoning8
Diagram5
Definition3
Identification2
Fill in the blank2

Most frequent topics

Heat and calorimetry 47Principle of calorimetry 3Specific latent heat 3Specific heat capacity 2Choice of calorimeter material 2Latent heat of fusion 2Heat capacity 2Nuclear physics / radioactivity 1

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Showing 25 of 86 matching questions (135 marks).

25 questions

9(b)

The diagram below shows the change of phases of a substance on a temperature vs time graph on heating the substance at a constant rate.

Figure for this question

9(b)(ii)2020

DiagramModerate1.5 marks

What is the boiling and melting point of the substance ?

9(c)2020

NumericalModerate4 marks

A piece of ice of mass 60 g is dropped into 140 g of water at 50°C. Calculate the final temperature of water when all the ice has melted. (Assume no heat is lost to the surrounding) Specific heat capacity of water = 4.2 Jg–1k–1 Specific latent heat of fusion of ice = 336 Jg–1

1(c)(i)2019

Short answerEasy1 mark

Name the physical quantity which is measured in calories.

1(c)(ii)2019

Short answerEasy1 mark

How is calorie related to the S.I. unit of that quantity?

2(c)2019

ReasoningModerate2 marks

The specific heat capacity of a substance A is 3,800 J kg-1K-1 and that of a substance B is 400 J kg-1K-1. Which of the two substances is a good conductor of heat? Give a reason for your answer.

4(b)(i)2019

Short answerEasy1 mark

State whether the specific heat capacity of a substance remains the same when it's state changes from solid to liquid.

4(b)(ii)2019

Short answerEasy1 mark

Give one example to support your answer.

7(c)

Two pendulums C and D are suspended from a wire as shown in the given figure. Pendulum C is made to oscillate by displacing it from it's mean position. It is seen that D also starts oscillating.

Figure for this question

7(c)(iii)2019

Short answerEasy1 mark

If the length of D is made equal to C, then what difference will you notice in the oscillations of D?

9(a)(i)2019

DefinitionEasy1 mark

Define Calorimetry.

9(a)(ii)2019

Short answerEasy1 mark

Name the material used for making a Calorimeter.

9(a)(iii)2019

ReasoningModerate1 mark

Why is a Calorimeter made-up of thin sheets of the above material answered in (ii) ?

9(b)2019

DiagramModerate3 marks

The melting point of naphthalene is 80°C and the room temperature is 30°C. A sample of liquid naphthalene at 100°C is cooled down to the room temperature. Draw a temperature time graph to represent this cooling. In the graph, mark the region which corresponds to the freezing process.

9(c)2019

NumericalModerate4 marks

104 g of water at 30°C is taken in a calorimeter made of copper of mass 42 g. When a certain mass of ice at 0°C is added to it, the final steady temperature of the mixture after the ice has melted, was found to be 10°C. Find the mass of ice added. [Specific heat capacity of water = 4.2 J g-1 °C-1; Specific latent heat of fusion of ice = 336 J g-1; Specific heat capacity of copper = 0.4 J g-1 °C-1 ]

4(a)(i)2018

Short answerEasy1 mark

How can a temperature in degree Celsius be converted into S.I. unit of temperature?

4(a)(ii)2018

Short answerEasy1 mark

A liquid X has the maximum specific heat capacity and is used as a coolant in Car radiators. Name the liquid X

4(b)2018

Short answerEasy2 marks

A solid metal weighing 150 g melts at it's melting point of 800 °C by providing heat at the rate of 100 W. The time taken for it to completely melt at the same temperature is 4 min. What is the specific latent heat of fusion of the metal?

9(a)(iii)2018

Short answerEasy1 mark

What is the energy absorbed during the phase change called?

9(b)(i)2018

Short answerEasy2 marks

State two differences between "Heat Capacity" and "Specific Heat Capacity".

9(b)(ii)2018

Short answerEasy1 mark

Give a mathematical relation between Heat Capacity and Specific Heat Capacity.

9(c)2018

NumericalModerate4 marks

The temperature of 170 g of water at 50°C is lowered to 5°C by adding a certain amount of ice to it. Find the mass of ice added. Given: Specific heat capacity of water = 4200 J kg-1 ⁰C-1 and Specific latent heat of ice = 336000 J kg-1

2(a)2017

DefinitionEasy2 marks

Define heat capacity and state its SI unit.

2(b)2017

ReasoningModerate2 marks

Why is the base of a cooking pan generally made thick ?

2(c)2017

NumericalModerate2 marks

A solid of mass 50 g at 150°C is placed in 100 g of water at 11°C, when the final temperature recorded is 20°C. Find the specific heat capacity of the solidfSpecific heat capacity of water – 4.2 J g -1 °C -1 )

6(a)(i)2017

Short answerEasy1 mark

How is the transference of heat energy by radiation prevented in a calorimeter ?

6(a)(ii)2017

ReasoningModerate2 marks

You have a choice of three metals A, B and C, of specific heat capacities 900 J kg-1 °C-1, 380 / kg-1 °C-1 and 460 J kg-1 °C-1 respectively, to make a calorimeter. Which material will you select ? Justify your answer.