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Specific Heat Calculations — Chemistry Questions & Practice

Practise 288 Specific Heat Calculations questions from Chemistry for competitive exams such as UPSC, Banking, SSC and Railway. Read the worked questions below, check every answer with an explanation, and track what you get wrong.

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Practice questions on Specific Heat Calculations — with answers

Try each question first, then open the answer. Explanations are included.

1. How much heat energy (in Joules) is required to raise the temperature of 10 g of water by 5 degrees Celsius? (Specific heat capacity of water = 4.18 J/g.C)

  1. A443.47
  2. B209
  3. C262.25
  4. D139.77
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Answer: B

Heat energy q = m x c x delta-T = 10 x 4.18 x 5 = 209 J.

2. How much heat energy (in Joules) is required to raise the temperature of 10 g of water by 10 degrees Celsius? (Specific heat capacity of water = 4.18 J/g.C)

  1. A243.06
  2. B626.63
  3. C418
  4. D656.37
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Answer: C

Heat energy q = m x c x delta-T = 10 x 4.18 x 10 = 418 J.

3. How much heat energy (in Joules) is required to raise the temperature of 10 g of water by 15 degrees Celsius? (Specific heat capacity of water = 4.18 J/g.C)

  1. A704.07
  2. B763.47
  3. C752.08
  4. D627
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Answer: D

Heat energy q = m x c x delta-T = 10 x 4.18 x 15 = 627 J.

4. How much heat energy (in Joules) is required to raise the temperature of 10 g of water by 20 degrees Celsius? (Specific heat capacity of water = 4.18 J/g.C)

  1. A864.18
  2. B672.29
  3. C836
  4. D1022.23
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Answer: C

Heat energy q = m x c x delta-T = 10 x 4.18 x 20 = 836 J.

5. How much heat energy (in Joules) is required to raise the temperature of 10 g of water by 25 degrees Celsius? (Specific heat capacity of water = 4.18 J/g.C)

  1. A1016.85
  2. B1045
  3. C1151.14
  4. D1318.49
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Answer: B

Heat energy q = m x c x delta-T = 10 x 4.18 x 25 = 1045 J.

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