Given 0.50 mol of NOCl is palced in a 1.00-L rection vessel at700 K and after th

Question

Given 0.50 mol of NOCl is palced in a 1.00-L rection vessel at700 K and after the system comes to equilibrium the concentrationof NOCL became 0.440 M. What is the equilibriumconstant? Reaction: 2NOCl (g) 2NO (g) + Cl2 (g) A. 5.6 x 10.4 B. 2.0 x 10-3 C.  4.1 x 10-3 D. 6.1 x 10-3 E.  8.2 x 10-3 Given 0.50 mol of NOCl is palced in a 1.00-L rection vessel at700 K and after the system comes to equilibrium the concentrationof NOCL became 0.440 M. What is the equilibriumconstant? Reaction: 2NOCl (g) 2NO (g) + Cl2 (g) A. 5.6 x 10.4 B. 2.0 x 10-3 C.  4.1 x 10-3 D. 6.1 x 10-3 E.  8.2 x 10-3 C.  4.1 x 10-3 C.  4.1 x 10-3 D. 6.1 x 10-3 E.  8.2 x 10-3 E.  8.2 x 10-3 E.  8.2 x 10-3

Explanation / Answer

   The given equivelibria is                                        2NOCl(g)             2NO (g)+        Cl2(g) Initialcon(mol)      0.50                              0.00                  0.00 change(mol)         0.440                           0.06            0.06 AtEquilibria(mol)   0.440                         2*0.06        0.06                          Equilibriumcinstant K=[NO]2[Cl]/[NOCl]2                                           K=[0.12]20.06/0.4402                                              =4.4*10-3                                           K  ˜4.1*10-3             Equilibriumcinstant  K  ˜4.1*10-3   Therefore the answer c is correct             Equilibriumcinstant  K  ˜4.1*10-3   Therefore the answer c is correct

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