Which Statement Best Describes the First Law of Thermodynamics

Question

Which statement best describes the first law of thermodynamics?
A) Matter can be created and destroyed.
B) Matter only changes forms.
C) Energy only changes forms.
D) Energy can be created and destroyed.

Accepted Answer

The first law of thermodynamics, also known as the law of energy conservation, states that energy cannot be created or destroyed in an isolated system. Instead, energy can only be transformed from one form to another.