How did world war ii act as a turning point in world history? a. it led to the spread of communism throughout south america and the caribbean. b. it allowed industrialized western european states to establish asian and african empires. c. it forced germany to pay war reparations that led to hyperinflation of german currency. d. it resulted in the rise of the united states and the soviet union as the world's two superpowers.

it's c. elements are placed in rows based on how may valencies electrons have.

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 :