chapter 6 RAT Flashcards
The motion of molecules that most affects temperature is
A. translational motion.
B. rotational motion.
C. internal vibrational motion.
D. simple harmonic motion.
A. translational motion
Heat energy travels from
A. an object that has a greater amount of thermal energy to an object with lower thermal energy.
B. an object that has a higher temperature to an object with a lower temperature.
C. both of these
D. none of these
B. an object that has a higher temperature to an object with a lower temperature
Absolute zero corresponds to a temperature of
A. 0 K.
B. –273° C.
C. both of these
D. neither of these
C. both of these
Thermal energy is normally measured in units of
A. calories.
B. joules.
C. both of these
D. neither of these
C. both of these
Which two laws of thermodynamics are statements of what doesn’t happen?
A. The first and the second
B. The first and the third
C. The second and the third
D. None of these; that is, they all state what does happen.
C. the second and the third
Your garage gets messier day by day. In this case, entropy is
A. decreasing.
B. increasing.
C. hanging steady.
D. none of these
B. increasing
The specific heat capacity for aluminum is more than twice that of copper. If equal quantities of heat are given to equal masses of aluminum and copper, the metal that more rapidly increases in temperature is
A. aluminum.
B. copper.
C. neither of these; that is, both will increase in temperature at the same rate.
D. none of these
B. copper
A bimetallic strip used in thermostats relies on the fact that different metals have different
A. specific heat capacities.
B. thermal energies at different temperatures.
C. rates of thermal expansion.
D. all of these
C. rates of thermal expansion
Water at 4°C will expand when it is slightly
A. cooled.
B. warmed.
C. both of these
D. neither of these
C. both of these
Microscopic slush in water tends to make the water
B. warmer.
C. more dense.
D. less dense.
D. less dense
