plumiSpecific heat capacity and latent heat: Edexcel International A Level Physics questions
Every Edexcel International A Level Physics exam question on Specific heat capacity and latent heat (specification points 125–127), 2019–2025, with its mark scheme and examiner’s report.
Paper
All papers
Exam
All years
Calculations
Q16(a)
The whole paper ↗Q16(b)
The whole paper ↗- Your answer
Q13(a)
The whole paper ↗Q13(b)
The whole paper ↗Q20(a)
The whole paper ↗Q20(b)
The whole paper ↗Q15(a)
The whole paper ↗Q15(b)
The whole paper ↗Q15(a)
The whole paper ↗Q15(b)
The whole paper ↗Q2(b)
The whole paper ↗Q16(a)
The whole paper ↗Q16(b)
The whole paper ↗Q14(b)
The whole paper ↗- Your answer
Q11(a)
The whole paper ↗Q11(b)
The whole paper ↗
All 38 questions on Specific heat capacity and latent heat, as a list
- June 2025, Unit 5, Q16(a) (5 marks): Water at 0.0 °C is frozen to form the block of ice. The block is cooled to a temperature of –7.5 °C. The block is then sealed in the waterproof bag. Determine t
- June 2025, Unit 5, Q16(b) (2 marks): The website of the delivery company includes the following statement. If the ice has melted by the time you receive your delivery, this means that energy from t
- January 2025, Unit 5, Q10 (1 mark): Energy is supplied at a constant rate to a material. The material is initially solid. As energy is supplied, the solid melts to form a liquid and finally the li
- January 2025, Unit 5, Q13(a) (4 marks): A mass of 0.65 kg of water is boiled away in a time of 1250 s. The power of the hot‑plate is 1800 W. Calculate the efficiency of the boiling process. specific l
- January 2025, Unit 5, Q13(b) (2 marks): Putting a lid on a boiling pan reduces the energy transfer needed from the hot‑plate to keep the water boiling. Explain why. (2)
- January 2025, Unit 5, Q20(a) (5 marks): Water enters the tank at a temperature of 12°C. An electrical heater increases the temperature of the water to 110°C. The water does not boil because it is unde
- January 2025, Unit 5, Q20(b) (5 marks): The average rate of energy transfer from the tank to the surroundings is 9.5 W. A full kettle contains 1.4 × 10 –3 m 3 of water. It takes 180 s to bring a full
- October 2024, Unit 5, Q12 (4 marks): Bronze is a mixture of tin and copper. Tin melts at a much lower temperature than copper. 2.7 kg of solid tin at a temperature of 295 K is added to 10.5 kg of m
- June 2024, Unit 5, Q15(a) (3 marks): An ice floe has a mass of 3.53 × 10 5 kg. Show that the energy required to melt this ice floe is about 1.3 × 10 11 J. initial temperature of ice = –18.0 °C fina
- June 2024, Unit 5, Q15(b) (6 marks): At the top of the atmosphere, the intensity of radiation from the Sun is 1370 W m –2. As radiation passes through the atmosphere, 44% is absorbed or reflected b
- January 2024, Unit 5, Q15(a) (2 marks): Explain why the liquid nitrogen boiled when the banana was submerged in the liquid nitrogen. (2)
- January 2024, Unit 5, Q15(b) (3 marks): During the demonstration, the liquid nitrogen remained at its boiling point in a large flask. The teacher estimated that at least 0.5 kg of liquid nitrogen was
- January 2024, Unit 6, Q2(b) (6 marks): The student suggested that the relationship between the temperature θ of the water and time t is –bt θ = θ0e where θ0 is the initial temperature of the water an
- October 2023, Unit 5, Q16(a) (4 marks): Show that the power of the kettle is about 1600 W. –1 K –1 specific heat capacity of water = 4190 J kg –3 density of water = 998 kg m (4)
- October 2023, Unit 5, Q16(b) (3 marks): The water boils at 100 Calculate the time now taken for 75% of the water to boil away. 6 J kg –1 specific latent heat of vaporisation of water = 2.26 × 10 (3) T
- June 2023, Unit 5, Q14(b) (4 marks): All 6 compartments in the ice cube tray are filled with water to a depth of 3.5 cm. The ice cube tray is placed in a freezer. The initial temperature of the wat
- June 2023, Unit 5, Q18 (6 marks): *18 Wax is heated until the temperature is above the melting point of the wax. The hot wax is poured into a bowl and allowed to cool. The graph shows how the te
- January 2023, Unit 5, Q4 (1 mark): A student measured the temperature of 0.015 kg of wax as it cooled and changed state from a liquid to a solid. Energy was transferred from the wax to the surrou
- January 2023, Unit 5, Q11(a) (3 marks): A pool contains 2750 m 3 of water at 16.5 °C. Calculate the increase in internal energy ΔE of the water when it is heated to 28.0 °C. density of water = 998 kg
- January 2023, Unit 5, Q11(b) (1 mark): A heater is used to increase the temperature of the water. State why the amount of energy supplied by the heater will be different from the value of ΔE calculat
- January 2023, Unit 6, Q1(b)(iii) (3 marks): Show that the temperature of the Bunsen burner flame is about 1500 °C above the initial temperature of the water. mass of screw = 4.11 g specific heat capacity
- October 2022, Unit 5, Q11 (5 marks): A student learns that the energy required to heat water for a bath can be 10 times the energy required to heat water for a shower. The student uses a shower for
- June 2022, Unit 5, Q20(a)(ii) (6 marks): The lead sphere has a radius of 1.2 mm. As it falls it cools from 615 K to 370 K. The molten lead solidifies at 601 K. Calculate the mean rate at which energy i
- June 2022, Unit 5, Q20(b)(i) (2 marks): Explain why the mass of lead shot in the tube should not affect the value of Δθ. (2)
- June 2022, Unit 5, Q20(b)(ii) (2 marks): Assess whether this method would produce an accurate value for c. (2)
- June 2022, Unit 6, Q1(b)(i) (1 mark): State another control variable that would allow him to compare the specific heat capacities for the two liquids. (1)
- June 2022, Unit 6, Q1(b)(ii) (2 marks): The student plotted a graph of temperature against time for the first liquid, as shown. 40 35 30 25 Temperature 20 / °C 15 10 5 0 0 10 20 30 40 Time / s Sketch
- January 2022, Unit 5, Q2 (1 mark): In an experiment to determine the specific latent heat of vaporisation of water LV , a student used an electrical heater to boil water in a beaker. The experime
- January 2022, Unit 5, Q12 (5 marks): Cocoa powder, milk and hot water are mixed together to produce a ‘hot chocolate’ drink. The mass of the drink is 275 g, and its initial temperature is 71.5 °C.
- October 2021, Unit 5, Q12 (4 marks): A kettle was used to heat 855 g of water to boiling point. The initial temperature of the water was 21.5 °C and it took 115 s to heat the water to 100 °C. The k
- October 2021, Unit 6, Q1(a)(i) (2 marks): Identify two other control variables for this investigation. (2)
- June 2021, Unit 5, Q13 (6 marks): In the book Charlie and the Chocolate Factory, a palace is made entirely from chocolate. Soon after it was made the palace melted, due to energy transfer from t
- June 2021, Unit 6, Q2(a) (6 marks): Devise a plan to determine the value of L using a graphical method. You should include a circuit diagram and any additional apparatus required. (6)
- June 2021, Unit 6, Q2(b) (3 marks): One significant source of error in this experiment is the uncertainty in the mass reading due to the water moving as it boils. Explain how another significant s
- January 2021, Unit 5, Q12(a) (3 marks): The heater is used in London, where the boiling point of water is 100.0 °C. Show that the time taken for the water to reach a temperature of 100.0 °C is about 2
- January 2021, Unit 5, Q12(b) (3 marks): The same heater is used in La Paz, the world’s highest capital city, where the boiling point of water is 87.7 °C. The mass and initial temperature of the water
- October 2020, Unit 5, Q19(c)(i) (3 marks): The manufacturer claims that the microwave oven has an efficiency of 90%. Assess the validity of this claim. (3)
- October 2020, Unit 5, Q19(c)(ii) (4 marks): The 325 g of hot water at 85.0 °C is poured into a polystyrene beaker containing 62.5 g of ice at 0.0 °C. Calculate the final temperature of the mixture of wate
Questions, mark schemes and examiner’s reports are © Pearson Edexcel, from their published past papers. Plumi isn’t affiliated with any exam board. Want whole papers? Every Edexcel International A Level Physics paper.
Rather write your answers by hand on iPad? Plumi marks them against the same mark schemes.