Practice Change Of State (8.7) - Thermodynamics

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8 questions

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Exercise
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Quiz
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6 sample questions

Question 1.
What is the latent heat of fusion?
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Think of melting ice.
Question 2.
At what temperature does water boil?
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This is a common temperature for boiling water.
3Question 3.
What is latent heat?
- Heat that increases temperature
- Heat required to change state without temperature change
- Heat that occurs during combustion
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Think about how ice changes to water.
4Question 4.
True or False: The temperature of a substance always increases when it changes from solid to liquid.
- True
- False
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Consider what happens during melting.
Question 5.
A block of ice weighing 1 kg melts into water at 0°C. If the latent heat of fusion is 334,000 J/kg, how much energy is required for this process?
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Remember to use the formula for latent heat!
Question 6.
Water requires 2,256 J to vaporize 1 kg into steam. Why is this energy crucial for boiling water and how does it relate to latent heat?
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Consider the transition from liquid to gas.

4 more questions in this section. Enroll free to practise them all.