For the reaction H2(g) + 12(g) = 2HI(g), Kc = 50.2 at 445°C. If [H2] = [12] = [HI] = 1.75 x 10-3 Mat 445°C, which of the
following is true based on the above?

Qc < Kc, the reaction proceeds from left to right to reach equilibrium

Given

K = 50.2 at 445°C

[H2] = [I2] = [HI] = 1.75 × 10⁻³ M At 445ºC

Reaction

H2(g) + I2(g) ⇔2HI(g)

Required

Qc

Solution

Qc for the reaction

Qc < Kc ⇒ reaction from left(reactants) to right (products) (the reaction will shift on the right) until it reaches equilibrium (Qc = Kc)  

the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.

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