Select the correct answer from each drop-down menu. What causes atoms to form covalent bonds?
The number of covalent bonds that an atom
In a covalent bond, two atoms are held together by the attraction between
can form depends on the number of
in the atom.

the answer would be a

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 :