A sample of di nitrogen tetroxide into (N2O4) gas occupies 144 L at STP. How many moles of nitrogen are present in this sample?

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 maximum mass of nh3 is nh3 in grams

it’s previous models   because when i picked that son of a gun’s answer it was wrong look for previous models because they might make it a different letter  

може ли да зареждате повече информация, моля