Question

Как сместить равновесия влево:а)Co+Cl2=CoCl2+Qб)H2+Cl2= 2HCl+Qв) H2S=H2+S-Qг)CaO+Co2=CaCo3-Qд)4HNo3=4No2+02+2H2O-Q

Answer 1

А) повысить температуру. понизить давление
б) повысить температуру. 
вв) понизить температуру
г) понизить температуру. понизить давление
д) понизить температуру.  повысить давление

Answer 2

Shifting Equilibria to the Left

To shift the equilibria to the left in a chemical reaction, we need to apply Le Chatelier's principle, which 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 position of equilibrium to counteract the effect of the disturbance.

Let's analyze each chemical reaction and discuss how to shift the equilibria to the left.

a) Co + Cl2 = CoCl2 + Q

To shift the equilibrium to the left in the reaction Co + Cl2 = CoCl2 + Q, where Q represents heat, we can apply Le Chatelier's principle. Since heat is a product in this reaction, decreasing the temperature will favor the endothermic reaction, shifting the equilibrium to the left.

Source: According to Le Chatelier's principle, "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 position of equilibrium to counteract the effect of the disturbance" [[1]].

b) H2 + Cl2 = 2HCl + Q

In the reaction H2 + Cl2 = 2HCl + Q, decreasing the temperature will favor the formation of reactants, shifting the equilibrium to the left. Since heat is a product in this reaction, lowering the temperature will promote the endothermic reaction, causing the equilibrium to shift to the left.

Source: According to Le Chatelier's principle, "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 position of equilibrium to counteract the effect of the disturbance" [[1]].

c) H2S = H2 + S - Q

In the reaction H2S = H2 + S - Q, where Q represents heat, decreasing the temperature will favor the endothermic reaction, shifting the equilibrium to the left.

Source: According to Le Chatelier's principle, "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 position of equilibrium to counteract the effect of the disturbance" [[1]].

d) CaO + CO2 = CaCO3 - Q

In the reaction CaO + CO2 = CaCO3 - Q, where Q represents heat, decreasing the temperature will favor the endothermic reaction, shifting the equilibrium to the left.

Source: According to Le Chatelier's principle, "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 position of equilibrium to counteract the effect of the disturbance" [[1]].

e) 4HNO3 = 4NO2 + O2 + 2H2O - Q

In the reaction 4HNO3 = 4NO2 + O2 + 2H2O - Q, where Q represents heat, decreasing the temperature will favor the endothermic reaction, shifting the equilibrium to the left.

Source: According to Le Chatelier's principle, "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 position of equilibrium to counteract the effect of the disturbance" [[1]].