Heat, Work and Energy

What is the Law of Conservation of Energy?

• Energy can be Destroyed

• Energy cannot be created nor Destroyed

• Energy flows

• Energy can be created

The First Law of Thermodynamics

• The change in internal energy of a system equals the difference between the heat taken in by the system and the work done by the system.

• The change in energy of a system is the sum between the heat taken in by the system and the work done by the process.

• The internal energy of a system equals the difference between the heat taken in by the process and the work done by the process.

• none of the above

It is the Sum of all Molecular Energy

• External Heat

• Internal Heat

• External Energy

• Internal Energy

It is used when referring to the energy in transit from hot to cold.

• Heat

• energy

• work

• internal energy

It is a device that reverses the direction of the heat flow: from a cold reservoir to a warmer one.

• heat energy

• Cold Pumps

• Heat Pumps

• Engines

It is a process that does not require any external energy to occur.

• spontaneous process

• non-spontaneous process

• spontaneous

• non-spontaneous

It is a process that needs mechanical energy to occur.

• spontaneous process

• Non-spontaneous process

• spontaneous

• Non-spontaneous

A device that changes thermal energy into mechanical work.

• Heat Pumps

• Heat

• Heat Engines

• energy

It is an Example of

• spontaneous process

• Non-spontaneous process

• spontaneous

• Non- spontaneous

This is an Illustration of

• Heat Pumps

• Heat Mumps

• Heat Engines

• Heat