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CHM 1100C EXAM 3 QUESTIONS WITH CORRECT WELL DETAILED ANSWERS

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1 calorie = ? joules - 4.184 joules 1 food calorie = ? cal - 1000 cal Gravitational potential energy equation - E=mgh Kinetic energy equation - KE=1/2mv^2 q calorimeter = ? q rxn - -q rxn Change in internal energy equation - ΔE = q + w q unit - J (energy exchanged between the system and surroundings as heat) w unit - J (energy exchanged between the system and surroundings as work) q0 - endothermic (system absorbs heat, energy added to the system, heat is being transferred to the system from the surroundings) q0 - exothermic (system evolves heat, system loses heat energy to the surroundings, heat is exiting the system) w0 - surroundings does work on system (work done on system) w0 - system does work on surroundings (work done by system)

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CHM 1100C EXAM 3 QUESTIONS WITH CORRECT
WELL DETAILED ANSWERS

1 calorie = ? joules - ✔✔4.184 joules



1 food calorie = ? cal - ✔✔1000 cal



Gravitational potential energy equation - ✔✔E=mgh



Kinetic energy equation - ✔✔KE=1/2mv^2



q calorimeter = ? q rxn - ✔✔-q rxn



Change in internal energy equation - ✔✔ΔE = q + w



q unit - ✔✔J (energy exchanged between the system and surroundings as heat)



w unit - ✔✔J (energy exchanged between the system and surroundings as work)



q>0 - ✔✔endothermic (system absorbs heat, energy added to the system, heat is being transferred to
the system from the surroundings)



q<0 - ✔✔exothermic (system evolves heat, system loses heat energy to the surroundings, heat is exiting
the system)



w>0 - ✔✔surroundings does work on system (work done on system)



w<0 - ✔✔system does work on surroundings (work done by system)

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