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5 moles of an ideal gas at 100 K are all...

5 moles of an ideal gas at 100 K are allowed to undergo reversible compression till its temperature becomes
200 K. If ` Delta U ` is 14 kJ, what is ` Delta pV ` in J ? for this process ` ( R = 8.0J K ^( -1 ) mol^( -1) ) `

Text Solution

Verified by Experts

` Delta (PV ) = nR Delta T = ( 5xx 8 xx 100 ) /(1000 ) = 4 kJ `
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5 moles of an ideal gas at 100 K are allowed to undergo reversible compression till its temperature becomes 200 K. If Delta U is 14 kJ, what is Delta PV for this process ( R = 8.0J K ^( -1 ) mol^( -1) )

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Knowledge Check

  • 5 moles of an ideal gas at 100 K are allowed to undergo reversible compression till its temperature becomes 200 K. If C_V = 28 JK^(-1) mol^(-1) , calculate DeltaU and DeltapV .

    A
    `DeltaU = 14 J, Delta(pV) = 0.8 J`
    B
    `DeltaU = 14 kJ, Delta(pV) = 4kJ`
    C
    `DeltaU = 14 kJ , Delta(pV) = 18 J`
    D
    `DeltaU = 2.8 kJ , Delta(pV) = 0.8 kJ`.

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