An auditorium has dimensions 10m x 10m x 65m An auditorium has dimensions 10m x 10m x 65m. How many moles of air fill this volume at STP? Select the correct answer. 2.9 x 105 2.9 x 108 2.9 x 102 2.9 x 104 2.9 x 106 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

An auditorium has a volume of 3 x 103 m3 An auditorium has a volume of 3 x 103 m3. How many molecules of air are needed to fill the auditorium at STP? (NA = 6.022 x 1023 (mol)-1) Select the correct answer. 0.8 x 1029 0.8 x 1034 0.8 x 1021 0.8 x 1026 0.8 x 1033 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

In order for two objects to have the same temperature, they must _____ In order for two objects to have the same temperature, they must _____ . Select the correct answer. be in thermal equilibrium be in thermal contact with each other have the same relative "hotness" or "coldness" when touched have all of these properties have all these qualities, except for thermal equilibrium 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

A container with a one-liter capacity at 34°C is filled with helium to a pressure of 3 atm. (1atm = 1.0 x 105 N/m2) How many moles of helium does it hold? Select the correct answer. 0.12 0.09 0.2 0.42 0.5 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

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. 4.0 6.0 4.8 4.5 27.9 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

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. 33 30 36 43 17 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

A thermometer registers a change in temperature of 105°F 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. 58.3 180.8 76 88 193 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

are in thermal equilibrium with one another 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. are in thermal equilibrium with one another are not in thermal equilibrium with one another are in thermal equilibrium with one another, but are not at the same temperature have each had the same change in temperature have each had the same change in volume 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

A bicycle pump contains air at STP 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. 1.4 0.7 2.6 0.9 2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50