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Enthalpy of combustion of carbon to CO2 is –393.5 KJmol–1 . Calculate the heat released upon the formation of 35.2 g of

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asked Oct 6, 2017 in Chemistry by jisu zahaan (28,760 points) ● 28 ● 436 ● 1085
edited Oct 6, 2017 by jisu zahaan

Enthalpy of combustion of carbon to CO2 is –393.5 KJmol–1 . Calculate the heat released upon the formation of 35.2 g of CO2 from carbon and dioxygen gas.

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answered Oct 6, 2017 by sforrest072 (157,439 points) ● 63 ● 448 ● 1274
selected Oct 6, 2017 by sanjeev
 
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Heat released when 44g CO2 is formed = 393.5 KJ 

Hence heat released when 35.2g CO2 is formed= 393.5 × 35.2/44 = 314.8 KJ

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