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For the reaction

CO_{(g)}+(1/2)O_{2(g)}=CO_{2(g)},K_{p}/K_{c}\; is

  • Option 1)

    RT

  • Option 2)

    \left ( RT \right )^{-1}

  • Option 3)

    \left ( RT \right )^{-1/2}

  • Option 4)

    \left ( RT \right )^{1/2}

 

Answers (1)

best_answer

As we learnt in 

Relation between Kp and Kc -

K_{p}=K_{c}(RT)^{\bigtriangleup n}

while calculating the value of Kp , pressure should be expressed in bar.

1\:bar=10^{5}pa

- wherein

\bigtriangleup n = (number of moles of gaseous products) - (number of moles gaseous reaction)

 

 CO \: _{\left ( g \right )}+\frac{1}{2}O_{2} \: _{\left ( g \right )}\rightleftharpoons CO_{2} \: _{\left ( g \right )}

For given reaction \bigtriangleup n=1-\frac{3}{2}=-\frac{1}{2}

K_p=K_c(RT)^\Delta ^{n}

\frac{K_p}{K_c}=(RT)^{-\frac{1}{2}}

 


Option 1)

RT

This option is incorrect 

Option 2)

\left ( RT \right )^{-1}

This option is incorrect 

Option 3)

\left ( RT \right )^{-1/2}

This option is correct 

Option 4)

\left ( RT \right )^{1/2}

This option is correct 

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