Question

Which of the following statements properly describe the first law of thermodynamics: NOTE: you can select more than one alternative Select one or more:

a. Energy cannot be created or destroyed

b. Energy can be changed from one form to another form of energy

c. Energy cannot be changed between forms without a loss of usable energy

d. Energy to do work decreases as energy changes from one form of energy to another

Answer 1

a and b

Explanation:

The first law of thermodynamics says that energy cannot be created or destroyed. Real world processes usually involve the change of energy from one form to another. For instance when a ball that bounces until it stops, it has changed its kinetic energy for caloric energy that resulted in heating the ball and the floor.

c and d options refer to the second law of thermodynamics