Which if the following is true about scientific theory? a. a theory is a proposed explanation for a hypothesisb. a theory can be formed after a single experimentc. a theory can be changed to explain new observations or experimental resultsd. a theory can never be changed

c. 75.7

i think that is the right

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 :