griffinadrianne9109

02.12.2019 • 

Chemistry

Hess's law can be used to calculate reaction enthalpies for hypothetical processes that can't be carried out in the laboratory. set up a hess's law cycle that will let you calculate δ h∘ for the conversion of methane to ethylene: 2ch4(g) → c2h4(g)+2h2(g) you can use the following information: 2c2h6(g)ch4(g)c2h4(g)h2o(l),+++7o2(g)2o2(g)h2(g)→→→4co2(g)co2(g)c2h6(g),++6h2o(l),2h2o(l),δh∘=−3120.8 kjδh∘=−890.3 kjδh∘=−136.3 kjδh∘f=−285.8 kj/mol
express your answer to four significant figures and include the appropriate units.

Ответ:

elijahbravo4334

19.10.2022

Chemistry

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I think it would be because of the heat. (Swelling from the sun being on them for so long.) Hope I helped! :)

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