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Specific heat capacity and latent heat

10th grade (Year 11 in England) · 16 questions · Common Core: NGSS.HS-PS3-1, NGSS.HS-PS3-4 · England: KS4 Combined Science: Energy, KS4 Combined Science: Particle model of matter

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Date

Score/ 16

  1. Question 1

    How much energy is needed to heat 2 kg of water by 50 °C? The specific heat capacity of water is 4200 J/kg °C. Give your answer in J.

    AnswerJ

  2. Question 2

    A 0.5 kg block of iron absorbs 4500 J and its temperature rises by 20 °C. What is the specific heat capacity of iron, in J/kg °C?

    AnswerJ/kg°C

  3. Question 3

    How much energy is needed to boil away 0.2 kg of water at 100 °C? The specific latent heat of vaporisation of water is 2 260 000 J/kg. Give your answer in J.

    AnswerJ

  4. Question 4

    How much energy is needed to heat 1.5 kg of water by 25 °C? The specific heat capacity of water is 4200 J/kg °C. Give your answer in J.

    AnswerJ

  5. Question 5

    A 2 kg block of copper absorbs 15600 J and its temperature rises by 20 °C. What is the specific heat capacity of copper, in J/kg °C?

    AnswerJ/kg°C

  6. Question 6

    How much energy is needed to boil away 0.5 kg of water at 100 °C? The specific latent heat of vaporisation of water is 2 260 000 J/kg. Give your answer in J.

    AnswerJ

  7. Question 7

    How much energy is needed to heat 2 kg of water by 15 °C? The specific heat capacity of water is 4200 J/kg °C. Give your answer in J.

    AnswerJ

  8. Question 8

    A 4 kg block of aluminium (aluminum) absorbs 180000 J and its temperature rises by 50 °C. What is the specific heat capacity of aluminium (aluminum), in J/kg °C?

    AnswerJ/kg°C

  9. Question 9

    How much energy is needed to boil away 0.2 kg of water at 100 °C? The specific latent heat of vaporisation of water is 2 260 000 J/kg. Give your answer in J.

    AnswerJ

  10. Question 10

    How much energy is needed to heat 0.5 kg of water by 50 °C? The specific heat capacity of water is 4200 J/kg °C. Give your answer in J.

    AnswerJ

  11. Question 11

    A 1 kg block of aluminium (aluminum) absorbs 45000 J and its temperature rises by 50 °C. What is the specific heat capacity of aluminium (aluminum), in J/kg °C?

    AnswerJ/kg°C

  12. Question 12

    How much energy is needed to melt 0.1 kg of ice at 0 °C? The specific latent heat of fusion of water is 334 000 J/kg. Give your answer in J.

    AnswerJ

  13. Question 13

    How much energy is needed to heat 1.5 kg of water by 40 °C? The specific heat capacity of water is 4200 J/kg °C. Give your answer in J.

    AnswerJ

  14. Question 14

    A 1 kg block of iron absorbs 11250 J and its temperature rises by 25 °C. What is the specific heat capacity of iron, in J/kg °C?

    AnswerJ/kg°C

  15. Question 15

    How much energy is needed to boil away 0.1 kg of water at 100 °C? The specific latent heat of vaporisation of water is 2 260 000 J/kg. Give your answer in J.

    AnswerJ

  16. Question 16

    How much energy is needed to heat 0.2 kg of water by 50 °C? The specific heat capacity of water is 4200 J/kg °C. Give your answer in J.

    AnswerJ

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Answer key: Specific heat capacity and latent heat

  1. 1. 420000 J

  2. 2. 450 J/kg°C

  3. 3. 452000 J

  4. 4. 157500 J

  5. 5. 390 J/kg°C

  6. 6. 1130000 J

  7. 7. 126000 J

  8. 8. 900 J/kg°C

  9. 9. 452000 J

  10. 10. 105000 J

  11. 11. 900 J/kg°C

  12. 12. 33400 J

  13. 13. 252000 J

  14. 14. 450 J/kg°C

  15. 15. 226000 J

  16. 16. 42000 J