Question

Name the physical quantity that remains conserved in first law of thermodynamics

Answer 1

Energy is the physical quantity that remains conserved in the first law of thermodynamics.

• The first law of the thermodynamics is also known as the "law of conservation of energy".
• It states that the energy can neither be created nor destroyed. And,the total amount of energy in the universe is always constant. The only things happens with the energy is the conversion of the energy from one form to another.
• So, it is clear that the first law of thermodynamics states that the amount of energy is constant which means that the energy is always conserved.
• That's why, the energy is the physical quantity which remains constant in the first law of thermodynamics.