Given:
2so2 + o2 -> 2so3 + 44kcal
Which change increase the concentration of so4?
a. increasing temperature
b. increasing the concentration of o2
c. decreasing the pressure
d. decreasing the concentration of so2
the answer is B increasing the concentration of o2
To determine which change will increase the concentration of SO4, we need to analyze the given balanced chemical equation and consider Le Chatelier's principle.
The given balanced chemical equation is:
2SO2 + O2 -> 2SO3 + 44 kcal
According to Le Chatelier's principle, changes in temperature, pressure, or concentrations of reactants or products can shift the equilibrium of a chemical reaction.
In this case, we want to increase the concentration of SO4 (sulfur trioxide, SO3). SO4 is not directly involved in the equation. However, in the equation, SO3 is produced when SO2 and O2 react. Therefore, to increase the concentration of SO4, we need to increase the concentration of SO3.
Looking at the equation, we can see that the forward reaction (from left to right) produces SO3. Therefore, we need to determine which change will favor the forward reaction:
a. Increasing temperature: Generally, increasing the temperature favors the endothermic reaction, which in this case is the forward reaction. So, increasing the temperature will increase the concentration of SO3 and ultimately increase the concentration of SO4. Therefore, option a can be a correct answer.
b. Increasing the concentration of O2: Since O2 is involved in the forward reaction, increasing its concentration will favor the forward reaction and increase the concentration of SO3 and SO4. Therefore, option b can be a correct answer.
c. Decreasing the pressure: The equation does not contain any gases, so changing the pressure will not affect the equilibrium of this reaction. Therefore, option c is not a correct answer.
d. Decreasing the concentration of SO2: Decreasing the concentration of a reactant will shift the equilibrium toward the side with greater concentration of that reactant. In this case, decreasing the concentration of SO2 will shift the equilibrium to the left, reducing the concentration of SO3 and SO4. Therefore, option d is not a correct answer.
In conclusion, both options a and b can increase the concentration of SO4 (or SO3).
To determine which change will increase the concentration of SO4, we need to analyze the given chemical equation:
2SO2 + O2 -> 2SO3 + 44 kcal
In this equation, SO2 reacts with O2 to form SO3. Therefore, the concentration of SO4 will depend on the concentration of SO3 present in the reaction mixture.
To increase the concentration of SO3, we need to shift the equilibrium towards the production of more SO3. There are a few factors that can affect the equilibrium position:
a. Increasing temperature: According to Le Chatelier's principle, increasing temperature favors an endothermic reaction. In this case, the forward reaction is exothermic (releasing energy in the form of 44 kcal). By increasing the temperature, we can counteract the exothermic nature of the reaction and shift the equilibrium towards the right, favoring the production of more SO3. So, increasing the temperature will increase the concentration of SO4.
b. Increasing the concentration of O2: According to the given equation, O2 is one of the reactants. By increasing its concentration, we can shift the equilibrium towards the right, leading to the production of more SO3. Consequently, the concentration of SO4 will increase.
c. Decreasing the pressure: The given equation does not involve any gaseous components except for O2, which is in excess. Therefore, changing the pressure will not have any significant effect on the equilibrium position of the reaction. So, decreasing the pressure will not increase the concentration of SO4.
d. Decreasing the concentration of SO2: Since SO2 is one of the reactants in the equation, decreasing its concentration will decrease the availability of the reactant. Consequently, the forward reaction will be favored to compensate for the decreased concentration of SO2. This will lead to the production of more SO3 and increase the concentration of SO4.
Based on the explanation above, options a (increasing temperature), b (increasing the concentration of O2), and d (decreasing the concentration of SO2) will increase the concentration of SO4. Option c (decreasing the pressure) will not have a significant effect.
None of the answers are correct. There is no SO4^2- produced.
By the way, you use the caps key for correct sentence structure which I applaud; do the same for correct chemical formula structure. It makes a difference.
CO is carbon monoxide
Co is cobalt
co is the abbreviation for company