Question

Given the reaction 2x + y gives z plus 80 which combination of pressure and temperature gives the highest yield of wizard at equilibrium

Answer 1

Answer:

For highest yield, pressure should be high and temperature should be low.

Explanation:

Let us first see the chemical equation;

2X(gas)+Y(gas)⇔2Z(gas)+80Kcal

This is an exothermic reaction because In an exothermic reaction, energy is released because the total energy of the products is less than the total energy of the reactants

In this equation, volume is decreasing and the reaction is exothermic, So, for the highest yield of wizard, pressure should be high and temperature should be low.

Answer 2

Answer:

Option C

Explanation:

The reaction 2X(g)+2Y(g)⇔Z(g)+80Kcal is favored in the forward direction at high pressure and low temperature.

The forward reaction proceeds with decrease in the number of moles from 4 to 1. When the pressure is increased by decreasing the volume at constant temperature, the forward reaction will be favored. The forward reaction is also an exothermic reaction as heat is liberated during the reaction. When temperature is lowered, the reaction will proceed in the forward direction so as to liberate heat and nullify the effect of lowering temperature.

Hence, option c will be the correct answer having maximum pressure and minimum temperature.

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