What is the pressure of 2.0 mol nitrogen (n2) gas in a 0.5 l container at 310 k

= 50.8772 atm

Using the  PV = nRT

n =number of moles , P is the pressure, V is the volume , T is a constant and R is the Universal constant, 0.08206 L.atm.mol−1.

P = nRT/V

  = (2.0 × 0.08206 × 310)/0.5

  = 50.8772 atm

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 :