Where do stars come from? describe their origin

The Origins Of Stars And Planets. Like the giant galaxies in which they appear, stars and their planets form when clumps of gas and dust contract to much smaller sizes. ... During the later stages of the contraction process, a rotating disk of gas and dust formed around the central mass that would become a star

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 :