Questions
Which one of the following equations does not correctly represent the first law of thermodynamics for the given process
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a
Isothermal process : q=−w
b
Cyclic process : q=−w
c
Isochoric process : ΔE=q
d
Adiabatic process : ΔE=−w
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Correct option is D
In adiabatic process. 110 heat is allowed to enter or leave the system, i.e. q = 0 Substituting this value in first law of thermodynamics.ΔE=q+W we get ΔE=WIn adiabatic expansion, work is done by the system on the surroundings hence W is negative. Accordingly , ∆E is also negative. i.e. internal energy decreases. In adiabatic compression. W is positive, ∆E is also positiveSimilar Questions
For the reaction the reaction enthalpy (Round off to the Nearest Integer) [Given : Bond enthalpies in
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