The percentage of mechanical energy that can theoretically be turned into heat energy according to the first law of thermodynamics is
A)100%
B)90%
C)75%
D)50%
E)0%

Question

Quizplus · 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. This implies that 100% of mechanical energy can theoretically be converted into heat energy, as the total energy in the system remains constant.

The Percentage of Mechanical Energy That Can Theoretically Be Turned