Do you know what specific latent heat is?
Energy and Changes of State Quiz
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Question 1 of 14Question 1
When you heat a system, the energy will be stored. In what form is the energy stored?
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Question 2 of 14Question 2
If temperature is a measure of the movement of particles, why does a cup of water at 30˚C store more energy than a spoonful of water at 30˚C?
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Question 3 of 14Question 3
How can we maintain the thermal energy in a warm object or prevent a cold object from gaining thermal energy?
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Question 4 of 14Question 4
Which of the following affect the amount of thermal energy stored in an object?
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Question 5 of 14Question 5
Which of the following is the definition of specific heat capacity?
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Question 6 of 14Question 6
Which of the following are correct?
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Question 7 of 14Question 7
Use some of the following words to complete the definition.
Specific, cool, leftover, latent, power, energy, 1, 100, 1000, mixture, state
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Complete the definition:
- Specific describes the amount of it takes to make kg of a substance change .
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Question 8 of 14Question 8
Which of the following equations represents the relationship between the change in thermal energy, the mass of an object, the specific heat capacity, and the change in temperature?
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Question 9 of 14Question 9
Calculate the change in energy of a 10kg iron block if its temperature increases by 20˚C and its specific heat capacity is 450 J/kg °C.
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J
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Question 10 of 14Question 10
We have a block of copper with a mass of 5 kg and a specific heat capacity of 385 J/kg °C. We increase the temperature of the copper by 15 ˚C. Calculate the change in thermal energy.
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J
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Question 11 of 14Question 11
Calculate the mass of a block of platinum when the change in thermal energy is 50 J, the specific heat capacity is 0.12 J/kg °C, and the change in temperature is 10 °C.
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Kg
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Question 12 of 14Question 12
Specific latent heat is different depending on the state change. It takes more energy to evaporate 1kg of a substance than it does to melt 1kg of the same substance. Using this information, determine which of the following is correct.
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Question 13 of 14Question 13
Calculate the energy required to change 1 kg of water from a solid to a liquid at 0˚C. The specific latent heat of fusion/melting for water is 334 kJ/kg.
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J
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Question 14 of 14Question 14
Calculate the specific latent heat of vaporisation/evaporation for carbon dioxide using the following information. You have a 1.5kg sample of carbon dioxide that changed state from a liquid to a gas. The energy required to evaporate it was 856.62. (Equation)
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J/kg
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