What are the properties of standard solutions?

The properties of a standard solution for titrations are:

•Its concentration must remain constant all the time. ...

•Its reaction with the analyte must be rapid in order to minimize the waiting period after addition of each reagent.

•Its reaction must be reasonably complete.

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 :

the volume increases