For the first picture, I only need #2 For the 2nd, I only need #2 and #3

The 3rd shows #1 for the second

Please help! Homework is due soon!

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 :

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.

you need to stop taking that class