What is the sum of the measures of the interior angles formed by the boundary of this team pennant?

Sense a pennant by definition always has 3 sides, it would be a triangle, and the definition of a triangle is and enclosed figure where the angles always add to 180 degrees.  Never more, never less.

Explanation:

it should be all of them because it asks if you included all of those in your answer

explanation:

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 :