Problem: Which produces more heat, Os(s) + 2O2(g) ⟶ OsO4(s) or Os(s) + 2O2(g) ⟶ OsO4(g)? For the phase change OsO4(s) ⟶ OsO4(g),    ΔH = 56.4 kJ

FREE Expert Solution

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.

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Problem Details

Which produces more heat, 

Os(s) + 2O2(g) ⟶ OsO4(s) 

or 

Os(s) + 2O2(g) ⟶ OsO4(g)? 

For the phase change OsO4(s) ⟶ OsO4(g),    ΔH = 56.4 kJ

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Endothermic & Exothermic Reactions concept. If you need more Endothermic & Exothermic Reactions practice, you can also practice Endothermic & Exothermic Reactions practice problems.

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Based on our data, we think this problem is relevant for Professor Rexford's class at FSU.

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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.