The following reaction was carried out in a 3.25 L reaction vessel at 1100 K:

If during the course of the reaction, the vessel is found to contain 5.25 mol of C, 13.3 mol of H₂O, 3.40 mol of CO, and 6.30 mol of H₂, what is the reaction quotient Q?
Enter the reaction quotient numerically.

Answer : The value of reaction quotient Q is, 0.498

Explanation:

Reaction quotient (Q) : It is defined as the measurement of the relative amounts of products and reactants present during a reaction at a particular time.

The given balanced chemical reaction is,

The expression for reaction quotient will be :

In this expression, only gaseous or aqueous states are includes and pure liquid or solid states are omitted.

Now we have to calculate the concentration of

and,

and,

Now put all the given values in the above expression, we get:

Thus, the value of reaction quotient Q is, 0.498

answer: the value of enthalpy change will be -152.80 kj.

solution:

pressure = 1atm , temperature = = 298 k

given that pressure and temperature are same in both gases , the number of moles of both gases can be determined by the ideal gas equation.

according to reaction 3 moles no are reacting with 1 mol of ,then 0.49 mol of no will react with moles of ozone that is 0.16 moles of ozone. since, no is limiting reagent and is an excessive reagent.

enthalpy change for the reaction between the given volumes of the gases is :