How much heat is needed to melt 10.0 kg of lead at its melting point?
How much heat is needed to vaporize 10.0 kg of mercury at its boiling point?
A temperature of a 0.25 kg sample of copper decreases from 75.0 °C to 25.0 °C. How much heat flows out of the copper sample?
When 8,000 joules of heat are removed from a sample of mercury, the temperature of the sample is decreased from 40 °C to 15 °C. What is the mass of the sample?
Thermal energy of a substance is the sum of the potential energy and kinetic energy of the particles that make it up. Let’s say you had a hot cup of water and a cold cup of water, and then mixed them. Illustrate the behavior of the particles before and after thermal equilibrium is reached.
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Answer:
2.3 x 10^5 J
Explanation:
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