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Applied Physical UCF Chemistry Exam 1 With Complete Solutions
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Applied Physical UCF Chemistry Exam 1 WithComplete Solutions
Boyle's Law - ANSWER P1V1=P2V2
Only applies when reaction is isothermal & composition is constant
Charles' Law - ANSWER V1/T1=V2/T2
Only applies when reaction is isothermal & composition is constant
Gay-Lussac's Law - ANSWER P1/T1=P2/T2
only applies when reaction is isochoric & composition is constant
Combined Gas Law - ANSWER P1V1/T1=P2V2/T2
Avogadro's Law - ANSWER V1/n1=V2/n2
Only applies when reaction is isothermal, isobaric, & composition is constant
Perfect Gas Law - ANSWER PV=nRT
Dalton's Law of Partial Pressures - ANSWER Pi = xi * PT
Σi Pi = Σi xi * PT
Sum of all fractions must be 1
Isothermal - ANSWER constant temperature
Only open systems or systems with a diathermic wall
, Isochoric - ANSWER constant volume
No work is done
Isobaric - ANSWER constant pressure
Adiabatic - ANSWER No heat energy is exchanged between systems & surroundings
Requires adiabatic wall
Heat input to the system - ANSWER q > 0
Heat evolved by the system - ANSWER q < 0
Work output by the system - ANSWER w < 0
Work input to the system - ANSWER w > 0
Overall First Law of Thermodynamics - ANSWER ΔU = q + w
Units are J for all 3
Overall expression for ΔU - ANSWER = qv
=Cv ΔT
Overall expression for ΔH - ANSWER =Cp ΔT
ΔU for isothermal process - ANSWER = 0 J
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