Intro to Thermochemistry

According to the Law of Conservation of Energy, when energy is changed from one form to another,

• all matter is conserved (kept)

• all matter is lost (destroyed)

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The study of changes in heat energy that accompany chemical reactions and physical processes is called

• thermochemistry

• standard enthalpy change

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If heat is released by a chemical system, an equal amount of heat will be

• absorbed by the surroundings

• released by the surroundings

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The energy stored in the chemical bonds of a substance would be classified as potential energy.

• True

• False

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Heat is transfered due to temperature difference.

• False

• True

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Every chemical change is accompanied by a change in energy.

• True

• False

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NGSS.HS-PS1-4