The first ionization energy, E E , of a potassium atom is 4.19 × 10 2 kJ / mol 4.19×102 kJ/mol . What is the wavelength of light, in nanometers, that is just sufficient to ionize a potassium atom? Refer to the values for constants.

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 :

i think is conclusions.i think so