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4 cards from this section. Quick, good the night before a test.
Define heat in your own words.
Think about what happens when you touch something hot.
What does specific heat capacity measure?
It relates to how much energy a substance can store.
What is the unit of measurement for heat?
Consider the system of units we generally use in physics.
True or False: Latent heat causes a temperature change in a substance.
Remember what happens during melting or boiling.
A 1 kg block of metal at 100°C is placed in 500 g of water at 25°C. Considering the specific heat of metal is 0.5 J/g°C, calculate the final temperature when thermal equilibrium is reached.
Remember that heat lost by metal equals heat gained by water.
If it takes 334 kJ to melt ice, how much energy is needed to turn 2 kg of ice at 0°C to water at the same temperature? What about converting 2 kg of the resulting water at 0°C to steam?
Keep in mind the specific latent heat values for both fusion and vaporization.
6 more questions in this section. Enroll free to practise them all.
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