Where do the majority of volcanoes occur? A ) At the edges of continents along plate boundaries.
B ) In the center of oceans.
C ) In the center of continents.
D ) In the middle of the ocean

I think the answer is A.

Explanation:

Volcanoes are common along convergent and divergent plate boundaries.

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 :