Question

State the law applicable for adiabatic process and write its expression

Answer 1

triangle u is equal to Q - w. when triangle u notes the change in systems internal energy.

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Answer 2

Law of thermodynamics is applicable, and

Adiabatic process, Q = 0  (U = -ΔW )

Explanation:

• The adiabatic process usually refers to the condition when there is no gaining or losing heat (energy) by the system. There is no exchange of heat between the system and the outside of it.

• So, from this, it can be concluded that the first law of thermodynamics is applicable for this adiabatic process, where Q=0. This shows that the entire changes that occurs in the internal energy is represented in the form of energy. This leads to the condition of the adiabatic process.

• Mathematically, the adiabatic process can be written as,

Q = 0 , where U = -ΔW

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