In which direction does the following reaction shift as result of each of the following changes? Explain why? 2NO(g) + 2H2(g) ⇄ 2NO2(g)  a. increasing the pressure of gases in the reaction vessel by decreasing the volume.  b. increasing the pressure of gases in the reaction vessel by adding inert argon gas while keeping the volume of the vessel constant.  c. increasing the temperature.  d. Increasing the concentration of the products

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