Thermochemistry

nheny
timer Asked: Apr 27th, 2018

Question Description

a) Using enthalpy of formation values, determine the molar enthalpy of combustion for ethanol. first, balance the equation. b) How much energy is released when 5.0 g of ethanol are burned? C) if this energy is used to heat 100g of water, determine the greatest possible temperature change, assuming all energy is transferred to water. Below is the work I already had done

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6.a) C₂ HS OH (1) + 30 (9) 200₂ (g) + 3H₂O cg) (-235.2 kj/mol) (8) (-393.5) (-285.8) AH = Eshºf (product) - EAH °F Creactent). . = [(2x-393.5) + (3 -285. 8.) – [(x-235.2 + 3x0)] 2 CO2 3 H2O C₂ HSOH 302 -1644.4ky - (-235.2 kJ) -- 1409, 2 kJ combustion of enthanol The molar enthalpy of is 1409, 2ky/mol.
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