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Absorption of Heat Practice Questions

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Thermodynamics Learning Material
Tutorial IDTitleTutorialVideo
Tutorial
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Notes
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Questions
13.3Absorption of Heat

Physics Revision Questions for Absorption of Heat

1) How many Joules are needed to change the temperature of 200 g aluminum from 15°C to 55°C?

caluminum = 900 J/kg°C
  1. 1800 J
  2. 3600 J
  3. 5400 J
  4. 7200 J

Correct Answer: D

2) If 2000 cal is supplied to some water at 10°C, its final temperature becomes 50°C. Calculate the mass of water in grams. (cwater=1 cal/g°C)

  1. 15
  2. 20
  3. 50
  4. 85

Correct Answer: C

3) A 20 g ice cube at -15°C is converted into water at 40°C. Calculate the energy required for this process.

cice = 0.5 cal/g °C , Lice = 80 cal/g , cwater = 1 cal/g °C
  1. 800 cal
  2. 1600 cal
  3. 2550 cal
  4. 3000 cal

Correct Answer: C

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