What's the difference between volcano and vent
when water vapor in the atmosphere loses heat and cools down, condensation happens. as the water vapor cools down and condenses, it attaches to small particles of dust floating in the atmosphere, forming tiny liquid water droplets.
answer: the theoretical yield is 6 rings.
theoretical yield is predicted or estimated value.
jeweler used 2 sapphires for 1 ring
then for each sapphire there will be = rings are used
for 12 sapphire = will be used
out of 10 rings 6 rings with 2 sapphires will be made.
the theoretical yield is 6 rings.
answer: -736.738 kj/mol.
explanation:the thermochemistrty that represents the reaction of iron with oxygen to produce rust and gives heat is:
4fe + 3o₂ → 2fe₂o₃, δh°f = -822.2 kj/mol.the stichiometry of this reaction shows that 4 moles of fe reacts with 3 moles of oxygen to give 2 moles of fe₂o₃.also, the formation of 1.0 mole of fe₂o₃ gives -822.2 kj/mol.now, we need to know the number of moles of iron that will be in the reaction.n = mass / molar mass = 100.0 g / 55.8 g/mol = 1.79 mol.from the stichiometry of the reaction:
4.0 moles of fe → 2.0 moles of fe₂o₃
1.79 moles of fe → moles of fe₂o₃
using cross multiplication:the number of moles of fe₂o₃ will produced from the reaction = (1.79 x 2.0) / (4.0) = 0.896 mole.
the production of 1.0 mole of fe₂o₃ → -822.2 kj/mol
the production of 0.896 mole of fe₂o₃ → kj/molthe 100 g fe will give = (-822.2 x 0.896) / (1.0) = -736.738 kj/mol.