Imagine that you have been assigned 5 substances for which you will observe the rate of diffusion. The only information that you have about your materials is the molecular weight of each substance, listed below: Substance #1: 212 mg Substance #2: 1918 mg Substance #3: 50 mg Substance #4: 4 mg Substance #5: 700 mg If the substances are allowed to diffuse for one hour, what can you predict about the rate of diffusion?

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 :

it takes on an electronical energy