Unit 6: Thermodynamics

________ is when energy is transferred from the system to the surroundings, such as when a chemical reaction occurs in a beaker and the beaker feels hot.

________ states that if a reaction can be broken into a series of steps, the sum of the ΔH of those steps are equal to the ΔH of the reaction.

________ is the measure of energy that is released or absorbed when bonds are broken /formed.

________ remains constant during a phase change.

________ is the measurement of heat changes during a chemical reaction.

________ is how much energy is required to turn a liquid to a gas.

________ occur when a system absorbs the energy from the surroundings, such as when a beaker feels cold.

________ is the amount of pressure given off by molecules as they go from solid /liquid to gas.

The ________ is the energy given off when a gas condenses.

________ is a Coulombic energy and its magnitude increases as the ions increase their charge or decrease the size.

When bonds are formed, energy is ____.

________ is the amount of energy required to cause a solid to melt.

When bonds are broken, energy is _____.

sublimation

deposition

Enthalpy change

Enthalpy of formation

The amount of energy released when one mole of a compound is made from pure substances

Molecules that go from solid/liquid to gas emit ________.

________ is when energy is transferred from the surrounding to the system, such as when a chemical reaction occurs in a beaker and the beaker feels cold.