Question

Which of the following best describes the second 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 a mailer
C. Some useful energy is lost as heat whenever an energy transfer occurs
D. Energy transfers are always 100% efficient in changing energy from one useful form to another

Answer 1

Hint: Thermodynamics is the branch of physics that deals with the relationships between heat and different varieties of energy. especially, it describes however thermal energy is regenerated to and from different kinds of energy and the way it affects matter.

Complete answer:
The second law of thermodynamics states that the full entropy of the associated isolated system will ne'er decrease over time, and is constant if and given that all processes are reversible. Isolated systems spontaneously evolve towards physics equilibrium, the state with most entropy. The second law of thermodynamics states that whenever energy is remodeled, there's a loss of energy through the discharge of heat. This happens once energy is transferred between trophic levels as illustrated in a very organic phenomenon. Once one animal feeds off another, there's a loss of warmth (energy) within the method. An extra loss of energy happens throughout respiration and movement. Hence, a lot of and a lot of energy is lost jointly moves up through organic process levels. Energy isn't created nor destroyed, however, it will grow to be matter. Energy isn't created nor destroyed, however, it will amend from one energy kind to a different. So, the right possibility is 'Some helpful energy is lost as heat whenever associate energy transfer occurs'.
Hence, C is the correct option.

Note: Energy is the ability to evoke modification or to try and do work. The Second Law of physical science states that "in all energy exchanges, if no energy enters or leaves the system, the mechanical energy of the state can invariably be but that of the initial state." This can be conjointly usually remarked as entropy.