Clicker Question
A.
B.
C.
D.
E.
Clicker Question
The illustration shows a
thermometer that uses a column of
liquid (usually mercury or ethanol)
to measure air temperature. In
thermal equilibrium, this
thermometer measures the
temperature of
A. the column of liquid.
B. the glass that encloses the liquid.
C. the air outside the thermometer.
D. both A. and B.
E. all of A., B., and C.
Clicker Question
The illustration shows a
thermometer that uses a column of
liquid (usually mercury or ethanol)
to measure air temperature. In
thermal equilibrium, this
thermometer measures the
temperature of
A. the column of liquid.
B. the glass that encloses the liquid.
C. the air outside the thermometer.
D. both A. and B.
E. all of A., B., and C.
Clicker Question
A sample of a low-density gas is initially at room
temperature and has pressure p0. The gas is warmed at
constant volume until the pressure is 2p0.
Compared to the initial Celsius temperature of the gas,
the final Celsius temperature is
A. greater by a factor of more than 2.
B.
greater by a factor of 2.
C. greater by a factor between 1 and 2.
D. the same.
E.
less.
Clicker Question
A sample of a low-density gas is initially at room
temperature and has pressure p0. The gas is warmed at
constant volume until the pressure is 2p0.
Compared to the initial Celsius temperature of the gas,
the final Celsius temperature is
A. greater by a factor of more than 2.
B.
greater by a factor of 2.
C. greater by a factor between 1 and 2.
D. the same.
E.
less.
Clicker Question
Which of the following is the proper SI unit for heat?
A. Kelvin
B.
Celsius
C. Watt
D. Joule
E.
British Thermal Unit (BTU)
Clicker Question
Which of the following is the proper SI unit for heat?
A. Kelvin
B. Celsius
C. Watt
D. Joule
E. British Thermal Unit (BTU)
Figure 17.12
Clicker Question
What is the approximate boiling temperature of water, in K?
A. 100 K
B.
212 K
C. 273 K
D. 373 K
E.
485 K
Clicker Question
What is the approximate boiling temperature of water, in K?
A. 100 K
B.
212 K
C. 273 K
D. 373 K
E.
485 K
Clicker Question
A pitcher contains 0.50 kg of liquid water and 0.50 kg of ice
at 0°C.You let heat flow into the pitcher until there is 0.75
kg of liquid water and 0.25 kg of ice. During this process,
A. the temperature of the ice-water mixture increases slightly.
B.
the temperature of the ice-water mixture decreases slightly.
C. the temperature of the ice-water mixture remains the same.
D. The answer depends on the rate at which heat flows.
E.
None of these
Clicker Question
A pitcher contains 0.50 kg of liquid water and 0.50 kg of ice
at 0°C.You let heat flow into the pitcher until there is 0.75
kg of liquid water and 0.25 kg of ice. During this process,
A. the temperature of the ice-water mixture increases slightly.
B.
the temperature of the ice-water mixture decreases slightly.
C. the temperature of the ice-water mixture remains the same.
D. The answer depends on the rate at which heat flows.
E.
None of these
Clicker Question
Heat is added at a rate of 10.0 kJ/min
to a 0.5 kg solid sample at t=0 min.
What is the melting temperature?
-5
A. 10 K
B.
-5 °C
C. 0 °C
D. 100 K
E.
283 K
Clicker Question
Heat is added at a rate of 10.0 kJ/min
to a 0.5 kg solid sample at t=0 min.
What is the melting temperature?
-5
A. 10 K
B.
-5 °C
C. 0 °C
D. 100 K
E.
283 K
Clicker Question
Heat is added at a rate of 10.0 kJ/min
to a 0.5 kg solid sample at t=0 min.
What is the heat of fusion?
-5
A. 1.0 J/g
B.
2.0 J/g
C. 10 J/g
D. 20 kJ/kg
E.
30 kJ/kg
Clicker Question
Heat is added at a rate of 10.0 kJ/min
to a 0.5 kg solid sample at t=0 min.
What is the heat of fusion?
-5
A. 1.0 J/g
B.
2.0 J/g
C. 10 J/g
D. 20 kJ/kg
E.
30 kJ/kg
Clicker Question
Heat is added at a rate of 10.0 kJ/min
to a 0.5 kg solid sample at t=0 min.
In which region(s) is the liquid phase
present?
A B
-5
A. A
B.
B
C. C
D. A and B
E.
B and C
C
Clicker Question
Heat is added at a rate of 10.0 kJ/min
to a 0.5 kg solid sample at t=0 min.
In which region(s) is the liquid phase
present?
A B
-5
A. A
B.
B
C. C
D. A and B
E.
B and C
C
Clicker Question
A microwave oven is rated at 1000 W. How long will it
take to bring a cup of water (250 ml) to boil from
room temperature (20 °C) at sea level?
(for water: cw=4190 J kg-1 K-1, 1 ml = 1 cm3 = 1 g)
A. 2.5 minutes
B.
41.9 s
C. 83.9 s
D. 60 s
E.
25.0 s
Clicker Question
A microwave oven is rated at 1000 W. How long will it
take to bring a cup of water (250 ml) to boil from
room temperature (20 °C) at sea level?
(for water: cw=4190 J kg-1 K-1, 1 ml = 1 cm3 = 1 g)
A. 2.5 minutes
B.
41.9 s
C. 83.9 s
D. 60 s
E.
25.0 s
Clicker Question
A.
B.
C.
D.
E.