The equilibrium constants at 298 K for a reaction A + B ⇌ C + D is 100. If the initial concentration of all the four species were 1 M each, then equilibrium concentration of D (in mol L - 1 ) will be

Question

The equilibrium constants at 298 K for a reaction A + B ⇌ C + D is 100. If the initial concentration of all the four species were 1 M each, then equilibrium concentration of D (in mol L - 1 ) will be, 1.182, 0.182, 0.818, 1.818

MARKS App · Accepted Answer

A + B ⇌ C + D K = 100 Q = 1 × 1 1 × 1 = 1 Hence Q K so reaction moves in forward reaction ( 1 + x ) 2 1 - x 2 = 100 1 + x 1 - x = 10 1 + x = 10 - 10 x x = 9 11 So, = 1 + x = 1 + 9 11 = 1.818 M

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