Which best describes the first law of thermodynamics?
A)Energy is neither created nor destroyed,but it can change from one energy form to another
B)Energy can be created from matter or used to produce matter
C)Useful energy is lost as heat whenever an energy transfer occurs
D)Energy transfers are always 100% efficient in changing energy from one form to another

Question

Quizplus · Accepted Answer

The first law of thermodynamics, also known as the law of conservation of energy, states that energy cannot be created or destroyed, but it can be transformed from one form to another. This means that the total amount of energy in a system remains constant, but it may be converted from one type to another, such as from potential energy to kinetic energy.

Which Best Describes the First Law of Thermodynamics