np1 2

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A certain amount of ideal monoatamic gas undergoes, process given by UV^1/2 = C where U is the internal energy of the gas. The molar specific heat of the gas for the process will be (c=constant)

A) R/2 B) 3R C) 5R/2 D) -R/2

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6 Answers

Avinav Prakash ·2010-02-28 22:28:20

IS IT....C ?

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UTTARA ·2010-02-28 22:53:38

No ans given is A

I got D

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UTTARA ·2010-03-01 00:37:44

Plzz post ur working So that we can c if there 's any mistake

I did it this way

C = R/(Î³-1) + R/(1-âˆ©)

Î³ = 5/3

âˆ© = 3/2 ( since UV^1/2 = C => nCv T V^1/2 = C => PV^3/2 = C )

C = 3R/2 - 2R = -R/2

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106

Asish Mahapatra ·2010-03-01 01:03:54

UV^0.5 = c
=> TV^0.5 = c
=> √VdT + TdV2√V = 0
=> dV/dT = -2V/T

C = Cv + (RT/V)(-2V/T)
= 3R/2 - 2R
= -R/2

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Kaustab Sarkar ·2010-03-01 02:36:17

@asish how u got this C = Cv + (RT/V)(-2V/T)..pla explain

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UTTARA ·2010-03-01 03:30:49

@Asish Thanks

u r correct

Ans given was wrong

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np1 2

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