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3) The combustion of ethanol (C₂H5OH) releases 1200 kJ/mol. If we need to generate 4600 kJ of energy, how many grams of
Posted: Wed Jul 06, 2022 11:02 am
by answerhappygod
- 3 The Combustion Of Ethanol C H5oh Releases 1200 Kj Mol If We Need To Generate 4600 Kj Of Energy How Many Grams Of 1 (34.07 KiB) Viewed 14 times
3) The combustion of ethanol (C₂H5OH) releases 1200 kJ/mol. If we need to generate 4600 kJ of energy, how many grams of ethanol do we need to burn? A) 176.6g B) 240g C) 122.8g D) 346.1g 4) Urea, NH₂CONH2, is a crystalline solid containing 46% of Nitrogen, used in agricultural industry as fertilizer and as an animal food additive. 45g of Urea is dissolved in 200ml of water in a Styrofoam cup. A temperature was changed from 23°C to 9°C. Calculate AHom/mole Urea. Assume density and specific heat capacity of the solution to be same as water. Specific heat capacity of water = 4.184 J g¹ C-¹ Density of water = 1g/ml A) 22.78KJ B) 9.3kJ C) 15.64kJ D) 1.75kJ