write a balanced equation for :
a sample of solid potassium chlorate is heated
and
rubidium metal reacts with hydrogen gas.
Also:
C2H4 + ICl5 --> 2 CH2Cl2 + ICl
Given :
ICl5 : -472.5 kj/mol
CH2Cl2 : -403.4 kj/mol
ICl : 135.0 kj/mol
so how ami supposed to find the the delta H using those
all in gas
2006-10-29 10:19:39 · 2 answers · asked by jinternazionale 2 in Science & Mathematics ➔ Chemistry
Firstly: potassium chlorate gives off oxygen gas when heated.
Rubidium reacts directly with hydrogen gas to form rubidium hydride, RbH.
Next: Normally, you would add up all the enthalpies of formation of the products, and subtract all the enthalpies of formation of the reactants, but you haven't quoted the value for C2H4.
2006-10-29 10:23:57 · answer #1 · answered by Gervald F 7 · 0⤊ 0⤋
2KClO3 --> 2KCl + 3O2
2Rb + H2 --> 2RbH
ΔH = 2*ΔΗ(CH2Cl2) + ΔH(ICl) - ΔH(C2H4) - ΔH(ICl5)
2006-10-29 10:58:31 · answer #2 · answered by Dimos F 4 · 0⤊ 0⤋