For a reaction 2A+B hArr C+D, the partia...

For a reaction `2A+B hArr C+D`, the partial pressures of A, B , C and D at equilibrium are 0.5, 0.8, 0.7 and 1.2 atmospheres respectively. The value of `K_(p)` for this reaction is

0.24

2.4

0.42

4.2

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