Question

Calculate the reaction quotient (Q) for the following chemical reaction at a given temperature and pressure: 2 SO2 (g) + O2 (g) ⟶ 2 SO3 (g) The initial concentrations of SO2, O2, and SO3 are 0.2 M, 0.1 M, and 0.3 M, respectively, at a total pressure of 3 atm and a temperature of 298 K.

Answer 1

To calculate the reaction quotient  Q  for the given reaction, we use the following expression:Q = [SO3]^2 /  [SO2]^2 * [O2] where [SO3], [SO2], and [O2] represent the initial concentrations of the respective gases.Given the initial concentrations:[SO2] = 0.2 M[O2] = 0.1 M[SO3] = 0.3 MPlug these values into the Q expression:Q =  0.3 ^2 /   0.2 ^2 *  0.1  Q = 0.09 /  0.04 * 0.1 Q = 0.09 / 0.004Q = 22.5The reaction quotient  Q  for the given reaction at the specified temperature and pressure is 22.5.