A.) Consider the following reaction at equilibrium. What effect will increasing

Question

A.) Consider the following reaction at equilibrium. What effect will increasing the temperature have on the system?

Fe3O4(s) + CO(g) 3 FeO(s) + CO2(g) H°= +35.9 kJ

Consider the following reaction at equilibrium. What effect will increasing the temperature have on the system?

Fe3O4(s) + CO(g) 3 FeO(s) + CO2(g) H°= +35.9 kJ

B.) Consider the following reaction at equilibrium. What effect will adding water have on the system?

CO2(g) + 2 H2O(l) CH4(g) + 2 O2(g) H° = +890 kJ

Consider the following reaction at equilibrium. What effect will adding water have on the system?

CO2(g) + 2 H2O(l) CH4(g) + 2 O2(g) H° = +890 kJ

C.) Consider the following reaction at equilibrium. What effect will adding a catalyst have on the system?

CO2(g) + 2 H2O(l) CH4(g) + 2 O2(g) H° = +890 kJ

Consider the following reaction at equilibrium. What effect will adding a catalyst have on the system?

CO2(g) + 2 H2O(l) CH4(g) + 2 O2(g) H° = +890 kJ

D.) Consider the following reaction at equilibrium. What effect will increasing the temperature have on the system?

C3H8(g) + 5 O2(g) 3 CO2(g) + 4 H2O(l) H° = -2220 kJ

the following reaction at equilibrium. What effect will increasing the temperature have on the system?

C3H8(g) + 5 O2(g) 3 CO2(g) + 4 H2O(l) H° = -2220 kJ

The equilibrium constant will increase. The reaction will shift to the left in the direction of reactants. The equilibrium constant will decrease. No effect will be observed. The reaction will shift to the right in the direction of products.

Explanation / Answer

A.

Fe3O4(s) + CO(g) 3 FeO(s) + CO2(g) H°= +35.9 kJ

SInce, forward reaction is endothermic reaction.

So, The reaction will shift to the right in the direction of products.

B

CO2(g) + 2 H2O(l) CH4(g) + 2 O2(g) H° = +890 kJ

Since H2O is the reactant. So,

The reaction will shift to the right in the direction of products.

C

CO2(g) + 2 H2O(l) CH4(g) + 2 O2(g) H° = +890 kJ

A catalyst speeds up the forward and back reaction to the same extent and adding a catalyst does not affect the relative rates of the two reactions, it cannot affect the position of equilibrium

No effect will be observed.

D

C3H8(g) + 5 O2(g) 3 CO2(g) + 4 H2O(l) H° = -2220 kJ

A temperature change occurs when temperature is increased or decreased by the flow of heat. This shifts chemical equilibria toward the products or reactants, which can be determined by studying the reaction and deciding whether it is endothermic or exothermic.

Its a exotermic reaction.

The reaction will shift to the left in the direction of reactants.

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