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

Enthalpy of combustion of carbon to CO2 is -393.5 kJ mol-1. Calculate

1.	Enthalpy of combustion of carbon to CO2 is -393.5 kJ mol-1. Calculate the heat released upon formation of 35.2 g of CO2 from carbon and dioxygen gas.
Answer» Formation of CO₂ from carbon and dioxygen gas is represented as: 2C(s) + 2O₂ (g) ➝ 2CO₂ ∆_fH = -393.5 kJ mol^-1 (1 mole = 44 g) Heat released on formation of 44g CO₂ = -393.5 kJ mol Therefore, Heat released on formation of 35.2 g CO₂ = 393.5 × 35.2 / 44 = 3.14 kJ mol^-1

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

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