2022 CHEM FINAL REVIEW heat specific heat capacity

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What is conduction?

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Conduction is the transfer of heat through a solid material without the movement of the material itself. It occurs when two objects at different temperatures are in direct contact.

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What is convection?

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Convection is the transfer of heat in liquids and gases through the movement of the fluid itself. Warmer parts of the fluid rise while cooler parts sink, creating a circulation pattern.

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What is radiation?

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Radiation is the transfer of heat in the form of electromagnetic waves. It does not require a medium and can occur in a vacuum.

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What is specific heat capacity?

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Specific heat capacity is the amount of heat energy required to raise the temperature of 1 gram of a substance by 1 degree Celsius.

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What is the specific heat of water?

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The specific heat of water is 4.18 J/(g°C).

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How do you calculate heat energy (Q)?

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Q = mass (m) × specific heat (c) × temperature change (∆t).

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What is the specific heat of platinum?

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The specific heat of platinum is 0.133 J/g°C.

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If 10 g of platinum cools from 100°C to 50°C, how much heat is released?

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66.5 J.

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What is the specific heat of copper?

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The specific heat of copper is 0.39 J/g°C.

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How do you find the temperature change (∆t) when heat is added?

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∆t = Q / (m × c), where Q is heat added, m is mass, and c is specific heat.