A sample of gas was compressed at 35 °C from a volume of 300.0 mL to a volume of 100.0 mL where its pressure was found to be 30.0 mm Hg. What was the original
pressure of the gas, if there was no change in temperature?

the energy to form plasma comes from heat or electricity in the atmosphere!

sunny~ ☺

the answer is true.

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 :

a electronegativity decreases beacuse the size of nucleus is bigger.