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In the given (V - T) diagram, what is the relation between pressures P₁ and P₂ ?

Option 1)
Cannot be predicted

Option 2)
P₂ = P₁

Option 3)
P₂> P₁

Option 4)
P₂< P₁

Answers (1)

best_answer

As we learnt in

Equation of state -

The relation between the Thermodynamics variable (P, V, T) of the system is called equation of state.

- wherein

$PV=nRT$

For an ideal gas

$PV=nRT$

or $V=(\frac{nR}{P})T$

For V-T graph slope $=\frac{nR}{P}$

From figure , $tan\Theta _2>tan\Theta _1$

or $\frac{nR}{P_2}>\frac{nR}{P_1}$

or $P_1>P_2$

Correct option is 3.

Option 1)

Cannot be predicted

Incorrect

Option 2)

P₂ = P₁

Incorrect

Option 3)

P₂> P₁

Correct

Option 4)

P₂< P₁

Incorrect

Posted by

Plabita

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