Physics 5D
Practice Midterm Exam
Fall 2013
Closed book exam only one 8.5x11 sheet of notes ok.
Note: Avogadros number NA = 6.02x1023 mol-1, 1 atm = 1.0x10 5 Pa, Boltzmanns
const k = 1.38x10-23 J/K, and the gas constant R = 8.314 J/molK = 1.99 cal/molK
Que
Physics 5D
Homework Set #3
Fall 2013
SOLUTIONS
Problems:
1. Giancoli, Chapter 18, problem 46. (Note the ideal gas law N/V = P/kT.)
We want the mean free path to be 1.0 m. Use Eq. 18-10b with the ideal gas law.
N
PV = NkT
P=
V
P
kT
; l
M
=
(1.38 10 J
=
4
Physics 5D
Homework Set #1
Fall 2013
SOLUTIONS
Problems:
1. Giancoli, Chapter 17, problem 21.
As the wine contracts or expands, its volume changes. We assume that the volume change
can only occur by a corresponding change in the headspace. Note that if th
Physics 5D
Homework Set #5
Fall 2013
SOLUTIONS
Problems:
1. Giancoli, Chapter 19, problem 63.
(a) The cross-sectional area of the Earth, perpendicular to the Sun, is a circle of radius REarth ,
and so has an area of REarth . Multiply this area times the s
Physics 5D
Homework Set #6
Fall 2013
SOLUTIONS
Problems:
1. Giancoli, Chapter 20, problem 11.
(a)
p
The work done during any process is given by Eq. 19-7.
So the net work done is as follows.
a
W = Wab + Wbc + Wcd + Wda
b
=
c
d
a
PdV + PdV + PdV + PdV
a
b
Physics 5D
Homework Set #4
Fall 2013
SOLUTIONS
Problems:
1. Giancoli, Chapter 19, problem 12.
The heat lost by the horseshoe must be equal to the heat gained by the iron pot and the water.
Note that 1.05 L of water has a mass of 1.05 kg.
(
)
(
)
(
mshoe c
Physics 5D
Homework Set #7
Fall 2013
SOLUTIONS
Problems:
1. Giancoli, Chapter 20, problem 40.
(a) We find the final temperature of the system using calorimetry, and then approximate each part
of the system as having stayed at an average constant temperatu
Print your name: _
Physics 5D
FINAL EXAM - ANSWERS
Fall 2013
Wednesday December 11 Thimann Lecture 3 4:00-7:00 pm
Closed book exam two 8.5x11 sheets of notes ok
Note: Avogadros number NA = 6.02x1023 mol-1, 1 atm = 1.0x10 5 Pa, Boltzmanns
constant k = 1.38
Print your name: _ANSWERS_
Physics 5D
PRACTICE FINAL EXAM
Wednesday December 11 Thimann Lecture 3 4:00-7:00 pm
Closed book exam two 8.5x11 sheets of notes ok
Note: Avogadros number NA = 6.02x1023 mol-1, 1 atm = 1.0x10 5 Pa, Boltzmanns
constant k = 1.38x10
Physics 5D
Homework Set #2
Fall 2013
SOLUTIONS
Problems:
1. Giancoli, Chapter 18, problem 10.
The rms speed is given by Eq. 18-5, vrms =
3kT m . The temperature can be found from the
ideal gas law, PV = NkT kT = PV N . The mass of the gas is the mass of a
Physics 5D - Homework 1
Due: Monday, October 3
1) A steel measuring tape has been calibrated at 20 oC. At 40 oC will it read high or
low? What will be the percent error?
2) Giancoli, 17.21 (Assume that