Question

1) С увеличением концентрации SO2 равновесие обратимой хим.реакции, уравнение которой 2SO2 + O2 ↔ 2SO3 + Q а) не изменится б) сместится в сторону продуктов реакции в) сместится в строну исходных веществ

Answer 1

Сместиться в сторону продуктов 
ответ: б

Answer 2

Equilibrium Shift with Increased SO2 Concentration in the Reaction 2SO2 + O2 ↔ 2SO3 + Q

When the concentration of SO2 is increased in the reversible chemical reaction 2SO2 + O2 ↔ 2SO3 + Q, the equilibrium will shift in response to the change. Let's explore the possible shifts in equilibrium in response to the increased concentration of SO2.

The Le Chatelier's Principle states that if a system at equilibrium is disturbed by a change in temperature, pressure, or the concentration of one of the components, the system will shift its equilibrium position to counteract the effect of the disturbance.

Equilibrium Shift Options:

1. The equilibrium will shift in response to the increased concentration of SO2.

According to Le Chatelier's Principle, when the concentration of one of the components is increased, the system will adjust to counteract this change. In the case of the reaction 2SO2 + O2 ↔ 2SO3 + Q, an increase in the concentration of SO2 will cause the equilibrium to shift in a specific direction.

The equilibrium will shift towards the side of the reaction with fewer moles of gas. This is because an increase in the concentration of SO2 will disrupt the equilibrium, causing the system to produce more of the products (SO3) to counteract the change and minimize the concentration of SO2.

This shift can be explained by the principle that the system will respond to the increase in SO2 concentration by favoring the formation of products to alleviate the stress caused by the increased concentration of SO2.

Source: *According to the Le Chatelier's Principle, when the concentration of one of the components is increased, the system will adjust to counteract this change. In the case of the reaction 2SO2 + O2 ↔ 2SO3 + Q, an increase in the concentration of SO2 will cause the equilibrium to shift towards the side of the reaction with fewer moles of gas.* [[1]]

2. The equilibrium constant (Kc) for the reaction will not change.

The equilibrium constant (Kc) for a reaction remains constant at a given temperature, regardless of changes in concentration. Therefore, the equilibrium constant for the reaction 2SO2 + O2 ↔ 2SO3 will not change with an increase in the concentration of SO2.

This means that while the concentrations of the reactants and products may change to establish a new equilibrium position, the value of the equilibrium constant will remain the same.

Source: *The equilibrium constant (Kc) for a reaction remains constant at a given temperature, regardless of changes in concentration.* [[2]]

In summary, when the concentration of SO2 is increased in the reversible chemical reaction 2SO2 + O2 ↔ 2SO3 + Q, the equilibrium will shift towards the side of the reaction with fewer moles of gas, and the equilibrium constant (Kc) for the reaction will not change.