Physics Final Exam

Physics Final Exam

1. Chapter 16

   • First Law of Thermodynamics
     • Delta U = Uf - Ui
       • DeltaU = Q-W
   • Isobaric Process (Constant Pressure)
     • W = P* DeltaV
       • W = P * (Vf-Vi)
     • Isothermal Process (Constant Temperature)
       • W = nRt * ln (Vf-Vi)
     • Isochoric Process (Constant Volume)
       • W = P*DeltaV = 0
   • +Q = energy increase and +DeltaU
     • -Q = energy decrease and -DeltaU
   • Equations for Work
     • W = PA * DeltaX
       • W = P * DeltaV
         • P = Pressure in gas
       • A = Area in Piston

2. Chapter 14

   • Specific Heat and Heat Capacity
     • Negative Q - Heat flow out
       • Positive Q - Heat flow in
     • Specific Heat = c
       • c = Q/(m*DeltaT)
     • Heat Capacity = Q/DeltaT
   • Newton's Law of Cooling
     • T = Ts + ((T0-Ts)*e^(-t/time constant))
       • T0 = Initial temperature
       • Ts = surrounding temperature
       • T = object's current temperature
   • Units of Heat and Conversions
     • Tk = Tc +273.15
     • Tf = (9/5)Tc +32
     • SI Units = Joules
       • 1 Calorie = 4.186 J
   • Calorimetry
     • Q = m*c*DeltaT
   • Latent Heat
     • Qcondense= -m + Lvaporization
       • Qboil = m*Lvaporization
         • Qmelt = m*Lfusion
           • Qfreeze = -m*fusion

3. Chapter 15

   • Specific Heat of Ideal Gas
     • DeltaU = Delta Q
       • = (3/2) * N * Kb * DeltaT
     • DeltaQ/DeltaT
       • =(3/2) x R
     • Pressure
       • P=NMv^2/3v
         • PV = N*(mv^2/3)
           • F=2mv/DeltaT
   • Atomic Mass
     • m = M/Na (avagadros number)
   • Temperature
     • KE = (3/2) Kb * T
       • KEtotal = N(KEtrans)
         • KEtotal= (3/2) * N * Kb *T
     • Number of Moles
       • U = (3/2) x nRT
   • Ideal Gas Law
     • PV = nRT
       • PV = N * Kb *T
         • N = # of Particles
         • Kb = 1.38*10^-23 J/K
       • n = # of moles
   • Avagadros Number
     • 6.02 * 10^23
       • # of Molecules in a mole