When the first law of thermodynamics, Q = ?U + W, is applied to an ideal gas that is taken through an isochoric process,
A)
?U = 0.
B)
W = 0.
C)
Q = 0.
D)
all of the above
E)
none of the above
B
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A perpetual motion machine of the second kind
A. violates the first law of thermodynamics B. would be a good investment C. violates the second law of thermodynamics D. violates the zeroth law of thermodynamics
The pascal is a pressure unit equal to
A) 1 newton per square meter. B) 1 kilogram per square meter. C) 1 newton per square centimeter. D) 1 kilogram per square centimeter.
Light in a frozen block of ice reflects off the ice-air interface at the surface of the block. What phase shift does it undergo?
A) 0° B) 90° C) 180° D) 270° E) It does not undergo any phase shift.
The process of melting lead is an example of
a. a physical change. b. a chemical change. c. a physical property. d. a chemical property.