Define the term half-life and illustrate it with an example.

  The half-life is defined as, the substance which are radioactive in the nature and it is charactertics constant. It basically measured the duration or time, when the quantity of the substance are reduced by the half with decay consequences. This process is defined the term half-life.

For example - The life of the medical are basically referred to the half life of the biological to drugs and other reactions in the body of human.

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 :