Practise

Question bank

Original exam-style questions, mapped to your syllabus. Answers are checked for mathematical equivalence and every attempt updates your mastery.

TopicSkillDifficulty

12 questions

SA-9702-TE2-0012 marksL1 FoundationCalculatorSpecific heat capacity

Calculate the energy needed to heat

1.5

kg of water from

20

°C to

100

°C, in kJ. (

c=4200

J kg⁻¹ K⁻¹)

Salam Academy Original Practice · Proposed mark scheme

SA-9702-TE2-0021 markL1 FoundationCalculatorLatent heat

Calculate the energy needed to melt

0.20

kg of ice at

0

°C, in kJ. (

L_f=3.3\times10^5

J kg⁻¹)

Salam Academy Original Practice · Proposed mark scheme

SA-9702-TE2-0051 markL1 FoundationCalculatorLatent heat

Specific latent heat of vaporisation is defined as the energy required to

Salam Academy Original Practice · Proposed mark scheme

SA-9702-TE2-0091 markL1 FoundationCalculatorLatent heat

While a pure substance is melting, its temperature

Salam Academy Original Practice · Proposed mark scheme

SA-9702-TE2-0101 markL1 FoundationCalculatorSpecific heat capacity

12\,000

J raises the temperature of

0.50

kg of a metal by

60

K. Calculate its specific heat capacity.

Salam Academy Original Practice · Proposed mark scheme

SA-9702-TE2-0121 markL1 FoundationCalculatorSpecific heat capacity

The unit of specific heat capacity is

Salam Academy Original Practice · Proposed mark scheme

SA-9702-TE2-0032 marksL2 StandardCalculatorSpecific heat capacity

50

W heater warms a

1.0

kg aluminium block by

11

K in

200

s. Calculate the specific heat capacity of aluminium.

Salam Academy Original Practice · Proposed mark scheme

SA-9702-TE2-0041 markL2 StandardCalculatorSpecific heat capacity

In an experiment to measure

c

, some energy is lost to the surroundings. The calculated value of

c

will be

Salam Academy Original Practice · Proposed mark scheme

SA-9702-TE2-0061 markL2 StandardCalculatorLatent heat

The specific latent heat of vaporisation of water is much greater than its specific latent heat of fusion because

Salam Academy Original Practice · Proposed mark scheme

SA-9702-TE2-0072 marksL2 StandardCalculatorLatent heat

500

W kettle boils away

0.050

kg of water in

230

s. Ignoring losses, calculate the specific latent heat of vaporisation, in units of

10^6

J kg⁻¹.

Salam Academy Original Practice · Proposed mark scheme

SA-9702-TE2-0082 marksL2 StandardCalculatorSpecific heat capacity

0.40

kg of water at

80

°C is mixed with

0.20

kg of water at

20

°C. Assuming no heat loss, calculate the final temperature.

Salam Academy Original Practice · Proposed mark scheme

SA-9702-TE2-0113 marksL3 ExamCalculatorLatent heat

Calculate the total energy needed to turn

0.10

kg of ice at

-10

°C into water at

30

°C, in kJ. (

c_{\text{ice}}=2100

c_{\text{water}}=4200

J kg⁻¹ K⁻¹;

L_f=3.3\times10^5

J kg⁻¹)

Salam Academy Original Practice · Proposed mark scheme