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Question

At 700K,Kp for reaction
2SO32SO2+O2
Kp=1.8×103kPa
What is the numerical value of Kc?

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Solution

Kp=1.8×103kPa=1.8 Pa

T=700 K

We know that

Kp=Kc(RT)Δn

Kc=Kp(RT)Δn

R=8.314 J mol1 K1

Δn=(2+1)2=1

Now put values;

Kc=1.8(8.314×700)1

Kc=3.09×107mol m3


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