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An auditorium has dimensions 10m x 10m x 65m. How many moles of air fill this volume at STP? Select the correct answer. 1234567891011121314151617181920.

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Presentation on theme: "An auditorium has dimensions 10m x 10m x 65m. How many moles of air fill this volume at STP? Select the correct answer. 1234567891011121314151617181920."— Presentation transcript:

1 An auditorium has dimensions 10m x 10m x 65m. How many moles of air fill this volume at STP? Select the correct answer. 1234567891011121314151617181920 2122232425262728293031323334353637383940 41424344454647484950 1.2.9 x 10 5 2.2.9 x 10 8 3.2.9 x 10 2 4.2.9 x 10 4 5.2.9 x 10 6

2 An auditorium has a volume of 3 x 10 3 m 3. How many molecules of air are needed to fill the auditorium at STP? (N A = 6.022 x 10 23 (mol) -1 ) Select the correct answer. 1234567891011121314151617181920 2122232425262728293031323334353637383940 41424344454647484950 1.0.8 x 10 29 2.0.8 x 10 34 3.0.8 x 10 21 4.0.8 x 10 26 5.0.8 x 10 33

3 In order for two objects to have the same temperature, they must _____. Select the correct answer. 1234567891011121314151617181920 2122232425262728293031323334353637383940 41424344454647484950 1.be in thermal equilibrium 2.be in thermal contact with each other 3.have the same relative "hotness" or "coldness" when touched 4.have all of these properties 5.have all these qualities, except for thermal equilibrium

4 A container with a one-liter capacity at 34°C is filled with helium to a pressure of 3 atm. (1atm = 1.0 x 10 5 N/m 2 ) How many moles of helium does it hold? Select the correct answer. 1234567891011121314151617181920 2122232425262728293031323334353637383940 41424344454647484950 1.0.12 2.0.09 3.0.2 4.0.42 5.0.5

5 A pressure of 5 mm Hg is measured using a constant-volume gas thermometer at a temperature of 70°C. What is the pressure (in mm Hg) at the zero-point temperature? (0°C = 273.15K) Select the correct answer. 1234567891011121314151617181920 2122232425262728293031323334353637383940 41424344454647484950 1.4.0 2.6.0 3.4.8 4.4.5 5.27.9

6 A building made with a steel structure is 600 m high on a winter day when the temperature is 0°F. How much taller (in cm) is the building when it is 90°F? (The linear expansion coefficient of steel is 11 x 10 -6 (°C) -1.) Select the correct answer. 1234567891011121314151617181920 2122232425262728293031323334353637383940 41424344454647484950 1.33 2.30 3.36 4.43 5.17

7 A thermometer registers a change in temperature of 105°F. What change in temperature does this correspond to on the Kelvin Scale? (0°C = 273.15K) Select the correct answer. 1234567891011121314151617181920 2122232425262728293031323334353637383940 41424344454647484950 1.58.3 2.180.8 3.76 4.88 5.193

8 A pebble-sized object and a bowling-ball sized probe from a spaceship land on a large asteroid that is far from any star. After a long period of time has passed, it is highly probable that the pebble and the probe _____. Select the correct answer. 1234567891011121314151617181920 2122232425262728293031323334353637383940 41424344454647484950 1.are in thermal equilibrium with one another 2.are not in thermal equilibrium with one another 3.are in thermal equilibrium with one another, but are not at the same temperature 4.have each had the same change in temperature 5.have each had the same change in volume

9 A bicycle pump contains air at STP. As the tire is pumped up, the volume of air decreases by 30% with each stroke. What is the new pressure of air (in atm) in the chamber after the first stroke, assuming no temperature change? Select the correct answer. 1234567891011121314151617181920 2122232425262728293031323334353637383940 41424344454647484950 1.1.4 2.0.7 3.2.6 4.0.9 5.2


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