Rxn 1: Os(s) + 2O2(g) ⟶ OsO4(s)
Rxn2: Os(s) + 2O2(g) ⟶ OsO4(g)
Comparing the two equations, we can see that the only difference is the state of products. We have a solid for Rxn 1 and gas for Rxn 2.
Which produces more heat,
Os(s) + 2O2(g) ⟶ OsO4(s)
Os(s) + 2O2(g) ⟶ OsO4(g)?
For the phase change OsO4(s) ⟶ OsO4(g), ΔH = 56.4 kJ
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Our data indicates that this problem or a close variation was asked in Chemistry - OpenStax 2015th Edition. You can also practice Chemistry - OpenStax 2015th Edition practice problems.