Enthalpy review all
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1) The combustion reaction of carbon with oxygen to produce carbon dioxide is exothermic and releases 393.5 kJ of heat per mole of carbon dioxide produced. 2) The document provides information on heats of reaction, moles of reactants and products, molar masses, and specific heats of various substances. 3) Additionally, the document discusses endo- vs exothermic reactions, activation energies, and gives examples of common fuels and their energy contents.
Enthalpy review all
- 1. ENERGY
- 24. Given C(s) + O2(g) -----> CO2(g) H = -393.5 kJ If you react ONE MOLE of Carbon with ONE MOLE of oxygen to make one mole of carbon dioxide you will give off 393.5 KJ of heat.
- 25. Given C(s) + O2(g) -----> CO2(g) H = -393.5 kJ 393.5 KJ MOLE 1 MOLE 12 grams 4 grams 1
- 26. LAB
- 27. LAB
- 28. LAB
- 37. Endothermic!
- 38. What is the activation energy for this reaction?
- 39. What is the activation energy for this reaction?
- 40. What is the H for this reaction?
- 41. Fuels!!! • Gasoline 11.3 kcal/g • methane • wood • wax
- 42. Specific heats • Substance C (J/g o C) • Air 1.01 • Aluminum 0.902 • Copper 0.385 • Gold 0.129 • Iron 0.450 • Mercury 0.140 • NaCl 0.864 • Ice 2.03 • Water 4.18