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17 Nov 2019
First Law of Thermodynamics Delta E = q + w is one expression for the first law of thermodynamics conservation of mass and energy Hess's Law enthalpy specific heat For a particular process q = -17kJ and w = +21kJ. Which of the following statements is false? Heat flows from the system to the surroundings The system does work on the surroundings Delta E =4kJ The process is exothermic. None of the above is false. Calculate the work associated with the expansion of a gas from 152.0 L to 189.0 L at a constant pressure of 14 0 atm 518 L atm -518 L atm -259 L atm 171 L atm 259 L atm Definitions: Heat Capacity/Specific Heat Capacity The units for specific heat are J/(g middot degree C) J middot degree C J middot g J/degree C J/g Calorimetry: Heat Transfer Problems What is the specific heat of ethyl alcohol if 6560 J of heat are required to raise the temperature of a 90.0-g sample from 25.0 to 55.0 degree C 112 J/(g middot degree C) 3.18 J/(g middot degree
First Law of Thermodynamics Delta E = q + w is one expression for the first law of thermodynamics conservation of mass and energy Hess's Law enthalpy specific heat For a particular process q = -17kJ and w = +21kJ. Which of the following statements is false? Heat flows from the system to the surroundings The system does work on the surroundings Delta E =4kJ The process is exothermic. None of the above is false. Calculate the work associated with the expansion of a gas from 152.0 L to 189.0 L at a constant pressure of 14 0 atm 518 L atm -518 L atm -259 L atm 171 L atm 259 L atm Definitions: Heat Capacity/Specific Heat Capacity The units for specific heat are J/(g middot degree C) J middot degree C J middot g J/degree C J/g Calorimetry: Heat Transfer Problems What is the specific heat of ethyl alcohol if 6560 J of heat are required to raise the temperature of a 90.0-g sample from 25.0 to 55.0 degree C 112 J/(g middot degree C) 3.18 J/(g middot degree
Lelia LubowitzLv2
11 Jun 2019