EEL 3394 ELECTRONIC MATERIALS Spring 2007
Quiz#1 Wednesday, Jan, 24th 2007
NAME: SS#: ___________________
GENERAL RULES:
This is a CLOSED BOOK, CLOSED NOTES quiz.
Show ALL YOUR WORK on the test.
For PARTIAL CREDIT you must clearly show ALL INTERMEDIATE STEPS. PLAIN
ANSWERS WILL GET NO CREDIT.
You MUST include UNITS with your answers for FULL credit.
TOTAL POINTS: 10
GOOD LUCK !!!!!!
Question #1: Gas equation: PV=nRT
i) (4 pts) Consider the figure to the right: An air filled cylinder is sealed off with a
weightless plunger that can move without friction. The plunger rests on the air at a
position defined by h. The contraption is immersed in a water bath whose temperature is
controllable. The air in the cylinder and the water are at
thermal equilibrium at all times (i.e. the walls of the
cylinder provide ideal heat transfer).
What will happen if the temperature of the water is
raised slowly from 300 K to 360 K?
a) The plunger moves down
b) The plunger moves up
c) The plunger does not move
ii) (3 pts) While the above process happens, the pressure
inside the cylinder is…
a) at atmospheric pressure
b) higher than atmospheric pressure
c) lower than atmospheric pressure
