Calculate the amount of heat evolved (in kJ) when 13.4 L of SO2 at STP and 15.0 L of O2 at 18˚C at 1.02 atm are
combined. The balanced chemical equation for this reaction follows:
2 SO2 (g) + O2 (g)  2 SO3 (g) ΔH = —198 kJ

__can be defined as which velocity changes

Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.

Which scenario is most similar to the type of collision that gas particles have according to kinetic molecular theory