Q.

Pure nitrosyl chloride (NOCI) gas was heated to 240oC in a 1.0 L container. At equilibrium the total pressure was 1.0atm and the NOCI pressure was 0.64 atm. What would be the value of K p?

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a

1.02atm

b

16.875 x 10-3atm

c

16 x 10 -2atm

d

None of these

answer is B.

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Detailed Solution

2NOCl(g)⇌2NO(g)+Cl2(g) at eq.;  P-2x           2x          x P+x=1; P-2x=0.64, x=0.12 Kp=(0.24)2(0.12)(0.64)2 =16.875×10-3 atm
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