In adiabatic expansion (A) Δu=0 (B) Δu= Positive (C) Ju= Negative (D) Δw=0

Name: Problem 1159, Chapter 8: JEE Physics
Uploaded: 2021-10-01T05:09:35-08:00
Duration: 1 min 31 s
Channel: Sachin Rao
Description: In adiabatic expansion (A) Δu=0 (B) Δu= Positive (C) Ju= Negative (D) Δw=0

step 1 Hello students in the question it is given that in audiovitic expression in adivetic expansion d

In adiabatic expansion (A) Δu=0 (B) Δu= Positive (C) Ju=...

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Key Concepts

Internal Energy Change

Internal energy represents the cumulative energy contained within a system, primarily in the form of kinetic and potential energies of its molecules. In an adiabatic expansion, the system performs work on its surroundings without receiving heat, typically leading to a decrease in internal energy, which is often observed as a drop in temperature.

Work in Thermodynamics

Work in thermodynamics refers to energy transfer that occurs when a force is applied over a distance, such as during a volume change. In an adiabatic expansion, the system performs work against external pressure, which reduces its internal energy. The convention used generally considers work done by the system as energy leaving the system.

Adiabatic Process

An adiabatic process is one in which the system does not exchange heat with its surroundings (Q = 0). This means any energy change within the system is exclusively due to work interactions, making the process solely dependent on mechanical energy transfers.

First Law of Thermodynamics

The first law of thermodynamics states that the change in a system's internal energy (?U) is equal to the heat added to the system minus the work done by the system (?U = Q - W). In adiabatic processes, since Q is zero, the internal energy change is entirely a consequence of the work executed by or on the system.

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