Sodium is an explosive metal. chlorine is a poisonous gas. you would expect a compound made of sodium and chlorine to be
very dangerous.
very explosive and poisonous.
very closely related to the element that makes up the majority of the compound.
unrelated to the individual properties of sodium and chlorine.

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 :