14.1 Energy

A measure of the average kinetic energy of the particles in a sample of matter.

Temperature

What is energy?

Is the ability to do work or produce heat

Energy exists in two basic forms. What are they?

Potential and kinetic energy

What is potential energy?

Is energy due to the composition or position of an object

What is kinetic energy?

Energy of motion

True or false

Chemical systems contain both kinetic and potential energy

True

True or false

Kinetic energy of a substance is directly related to the constant random motion of its representative particles and is proportional to temperature

True

The potential energy of a substance depends on:

It depends on its composition:(the type of atoms, the number and type of chemical bonds, and how the atoms are arranged).

What is the law that states “In any chemical reaction or physical process, energy is neither created nor destroyed” called?

Law of conservation of energy

The law of conservation of energy is also called…..?

The first law of thermodynamics

Is the energy stored in a substance because of its composition

Chemical potential energy

Is energy that is in the process of flowing from a warmer object to a cooler object. What am I?

Heat

The symbol for heat is:

q

The amount of energy required to raise the temperature of one

gram of pure water by one degree Celsius (1°C). What am I?

Calorie (cal)

What is the SI Unit of heat and energy

joule (J)

Is the amount of heat required to raise the temperature of one gram of that substance by one degree Celsius.

Specific heat

What is the equation for calculating heat?

q=cm *delta T