Practice Latent Heat (10.3) - Quantity of Heat

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10 questions

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6 sample questions

Question 1.
What is latent heat?
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Think about changing states.
Question 2.
Define latent heat of fusion.
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Consider melting ice.
3Question 3.
What is the latent heat of fusion of ice?
- 334 kJ/kg
- 2260 kJ/kg
- 0 kJ/kg
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Focus on melting ice specifics.
4Question 4.
True or False: Latent heat is the heat that causes temperature changes.
- True
- False
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Differentiate between temperature and phase changes.
Question 5.
A container holds 1.5 kg of ice at 0°C. Calculate the heat needed to melt all the ice into water. Then calculate the heat needed to turn the resulting water to steam.
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Break down the problem into melting and vaporizing stages.
Question 6.
If a 0.5 kg block of ice absorbs 167 kJ of energy, how much of that would go to melting vs heating the water if it has not yet reached the boiling point?
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Recall that temperature remains constant during the melting process.

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