Question

Calculate the reaction quotient Q for the chemical reaction below using the given concentrations of reactants and products at a temperature of 25°C:2H2(g) + O2(g) -> 2H2O(g)[H2] = 0.10 M, [O2] = 0.05 M, [H2O] = 0.08 M.

Answer 1

To calculate the reaction quotient Q for the given reaction, we need to use the formula:Q = [Products]^coefficients / [Reactants]^coefficientsFor the given reaction, 2H2 g  + O2 g  -> 2H2O g , the balanced equation shows the coefficients for each species. The formula for Q becomes:Q = [H2O]^2 /  [H2]^2 * [O2] Now, we can plug in the given concentrations:Q =  [0.08]^2  /   [0.10]^2  * [0.05] Q =  0.0064  /  0.01 * 0.05 Q = 0.0064 / 0.0005Q = 12.8The reaction quotient Q for the given reaction at the specified concentrations is 12.8.