Which of the following statements is not true? Asteroids go around the Sun between the orbits of Mars and Jupiter.
Most comets get brighter as they get near the Sun.
A meteor shower happens when meteors hit Earth.
The comet with the shortest period is Encke's comet.

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 :

idk what the question is about