Suppose you want to make 100 g of water. what is the molar mass of water. how many moles of water are in 100 g. how many moles of hydrogen will you need. how many moles of oxygen will you need. how many grams of hydrogen and oxygen will you need.

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 :