Chapter 17 - Thermochemistry

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3/30/2013 A burning match releasesheat to its surroundings inall directions. How muchheat does this exothermicreaction release? You willlearn to measure heat flowin chemical and physicalprocesses by applying theconcept of specific heat.10
3/30/2013 Calorimetry◦ What basic concepts apply to calorimetry?◦ Calorimetry is the precise measurement of the heatflow into or out of a system for chemical andphysical processes.• In calorimetry, the heat released by the system is equalto the heat absorbed by its surroundings. Conversely,the heat absorbed by a system is equal to the heatreleased by its surroundings.• Ref. table T – heat transfer equation:q = m x C x ∆T• q = heat absorbed or released• M = mass of water• C= specific heat• ΔT = temperature change11
Page 3 and 4: 3/30/2013• When fuel is burned in
Page 5 and 6: 3/30/2013• An exothermic process
Page 7 and 8: 3/30/2013 Heat Capacity and Specifi
Page 9: 3/30/2013• Because it is mostly w
Page 13 and 14: 3/30/2013 A small pebble is heated
Page 15 and 16: 3/30/2013• The heat of reaction i
Page 17 and 18: 3/30/2013The production of iron and
Page 19 and 20: 3/30/2013 Heats of Fusion and Solid
Page 21 and 22: 3/30/2013How many kJ of heat are re
Page 23 and 24: 3/30/2013• Enthalpy changes accom
Page 25 and 26: 3/30/2013How many kJ of heat are ab
Page 27 and 28: 3/30/2013How many moles of NH 4 NO
Page 29 and 30: 3/30/201329
Page 31 and 32: 3/30/2013• The Standard Heat of F
Page 33: 3/30/201333

Chapter 17 - Thermochemistry

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