Thermochemistry Review

Front

What is thermochemistry?

Back

Thermochemistry is the study of the heat energy associated with chemical reactions and changes of state.

Front

Define exothermic reaction.

Back

An exothermic reaction is a chemical reaction that releases heat to its surroundings.

Front

Define endothermic reaction.

Back

An endothermic reaction is a chemical reaction that absorbs heat from its surroundings.

Front

What is specific heat?

Back

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

Front

What is the formula for calculating heat absorbed or released?

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q = m × c × ΔT, where q is heat, m is mass, c is specific heat, and ΔT is the change in temperature.

Front

What does ΔT represent in thermochemistry?

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ΔT represents the change in temperature, calculated as final temperature minus initial temperature.

Front

What is the specific heat of water?

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

Front

How do you determine if a reaction is endothermic or exothermic?

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If the surroundings feel cold, the reaction is endothermic; if they feel warm, the reaction is exothermic.

Front

What is calorimetry?

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Calorimetry is the measurement of heat transfer during chemical reactions or physical changes.

Front

What is the principle of conservation of energy in thermochemistry?

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The principle states that energy cannot be created or destroyed, only transformed from one form to another.