HSC Science (Electronics) 12th Board ExamMaharashtra State Board
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Write mathematical equation of first law of thermodynamics for Adiabatic process - HSC Science (Electronics) 12th Board Exam - Chemistry

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Question

Write mathematical equation of first law of thermodynamics for Adiabatic process

Solution

Adiabatic process:
In an adiabatic process, there is no exchange of heat between the system and its surroundings, i.e. q = 0.

Therefore, the equation

`triangle U=q+W`

Becomes 

`triangle U=W or-triangle U=-W`

The above equation indicates that the increase in internal energy of the system is due to the work done on it by the surroundings or that the work done by the system on the surroundings is at the expense of the system’s internal energy which decreases in the process.

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APPEARS IN

 2015-2016 (March) (with solutions)
Question 1.3.1 | 1.00 mark
 2016-2017 (July) (with solutions)
Question 2.8 | 2.00 marks
Solution Write mathematical equation of first law of thermodynamics for Adiabatic process Concept: Chemical Thermodynamics and Energetic - First Law of Thermodynamics.
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