The diffusion constant for water in air is 2.4 × 10−5 m2/s. What is the distance a water molecule can travel by diffusion in 10 min?

A) 17 cm B) 20 cm C) 25 cm D) 31 cm E) 36 cm A) 17 cm B) 20 cm C) 25 cm D) 31 cm E) 36 cm

At what approximate temperature would the rms speed of H2 molecules equal the Earth's escape speed (11,200 m/s)?

A) 106 K B) 102 K C) 108 K D) 104 K A) 106 K B) 102 K C) 108 K D) 104 K

A 10.0 liter water bottle is filled to the brim with water when the temperature is 5.00°C. The bottle is sealed after it is completely filled with water. Water has a coefficient of volume expansion of 207 × 10−6/°C and a bulk modulus of 2.20 × 109 N/m2. If the temperature of the water tank is increased to 30.0°C, what is the increase in pressure of the water (ignore the expansion of the bottle)?

A) 1.01 × 107 N/m2 B) 1.14 × 107 N/m2 C) 1.75 × 107 N/m2 D) 2.01 × 107 N/m2 E) 2.73 × 107 N/m2 A) 1.01 × 107 N/m2 B) 1.14 × 107 N/m2 C) 1.75 × 107 N/m2 D) 2.01 × 107 N/m2 E) 2.73 × 107 N/m2

The density of copper at 293 K is 8,940 kg/m3 and its linear expansion coefficient is 17.0 x 10−6 K−1. Consider a hot cube of copper that is 1.0 cm on a side when its temperature is 1.356 K. What is the cube's mass?

A) 8.80 g B) 8.48 g C) 8.78 g D) 8.38 g E) 8.94 g A) 8.80 g B) 8.48 g C) 8.78 g D) 8.38 g E) 8.94 g

Exam 13: Temperature and the Ideal Gas

The mean free path of a molecule is 2.25 × 10^-7 m in an ideal gas at standard temperature and pressure (0°C and 1 atm). What is the mean free path if the diameter of the molecule and the temperature of the gas are both doubled?

(Multiple Choice)

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Question 21

A glass thermometer using a thin column of ethyl alcohol at room temperature (293.0 K) is cooled. When the temperature reaches 273.0 K the column of alcohol is 15.50 cm high. How tall was it when the temperature was 293.0 K? The coefficient of volume expansion of ethyl alcohol is 1,120 × 10⁻⁶ K⁻¹.

(Multiple Choice)

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Question 22

What is the average kinetic energy per particle in 1.00 mole of an ideal gas at a pressure of 1.50 atmospheres and a volume of 2.00 liters?

(Multiple Choice)

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Question 23

What is the root mean squared velocity of the nitrogen molecules in one mole of an ideal gas at a pressure of 1.50 atmospheres and a temperature of 20°C? (N₂ = 28 u)

(Multiple Choice)

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Question 24

The mean free path of a molecule is 2.25 × 10^-7 m in an ideal gas at standard temperature and pressure (0°C and 1 atm). What is the mean free path if the pressure of the gas is doubled but the temperature is constant?

(Multiple Choice)

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Question 25

A sample of CO₂ has a mass of 50.0 grams. What is number of molecules of carbon dioxide in the sample? (C = 12.0 u, O = 16.0 u, and 1 u = 1.66 × 10⁻²⁷ kg.)

(Multiple Choice)

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Question 26

A sample of an ideal gas is in a fixed volume container at pressure P-by heating the gas, the average speed of molecules in the gas triples. What is the new pressure of the gas?

(Multiple Choice)

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Question 27

One mole of an ideal gas with a volume of 4.00 liters and a temperature of 0°C is mixed with one mole of an ideal gas with a volume of 2.00 liters and a temperature of 100°C. The volume of the mixture is 6 liters. What is the number density of the mixture?

(Multiple Choice)

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Question 28

The diffusion constant for water in air is 2.4 × 10⁻⁵ m²/s. What is the distance a water molecule can travel by diffusion in 10 min?

(Multiple Choice)

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Question 29

At what approximate temperature would the rms speed of H₂ molecules equal the Earth's escape speed (11,200 m/s)?

(Multiple Choice)

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Question 30

A 10.0 liter water bottle is filled to the brim with water when the temperature is 5.00°C. The bottle is sealed after it is completely filled with water. Water has a coefficient of volume expansion of 207 × 10⁻⁶/°C and a bulk modulus of 2.20 × 10⁹ N/m². If the temperature of the water tank is increased to 30.0°C, what is the increase in pressure of the water (ignore the expansion of the bottle)?

(Multiple Choice)

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Question 31

An ideal gas composed of helium atoms is at a pressure of 2.00 atmospheres and a temperature of 35.0°C. What is the mass density? (He = 4.00 u)

(Multiple Choice)

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Question 32

A sample of water has a mass of 10.0 grams. What is the number of molecules of water in the sample? (H = 1 u, O = 16 u, and 1 u = 1.66 × 10⁻²⁷ kg.)

(Multiple Choice)

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Question 33

The mass of 6 million molecules of a diatomic gas is 5.1 × 10^-19 kg. What is the atomic mass of the element in this gas?

(Multiple Choice)

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Question 34

A 50.00 ml sample of mercury at room temperature (293.0 K) is cooled. What is the volume of the sample when the mercury reaches 273.0 K? The coefficient of volume expansion of mercury is 182.0 × 10⁻⁶ K⁻¹.

(Multiple Choice)

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Question 35

What is the average distance between air molecules at standard temperature and pressure (0°C and 1 atm)?

(Multiple Choice)

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Question 36

The total kinetic energy in one mole of an ideal gas is 4,000 J. If the gas is nitrogen, what is the root mean square velocity of an individual particle in the ideal gas? (N₂ = 28 u)

(Multiple Choice)

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Question 37

The density of copper at 293 K is 8,940 kg/m³ and its linear expansion coefficient is 17.0 x 10⁻⁶ K⁻¹. Consider a hot cube of copper that is 1.0 cm on a side when its temperature is 1.356 K. What is the cube's mass?

(Multiple Choice)

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Question 38

If the temperature of a room is 60°F, then what is the temperature of the room in Celsius?

(Multiple Choice)

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Question 39

The rms velocity of an oxygen molecule in a gas is 390 m/s. If the absolute temperature is increased by 20%, then what is the rms velocity?

(Multiple Choice)

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Question 40

Showing 21 - 40 of 85

Exam 13: Temperature and the Ideal Gas

The mean free path of a molecule is 2.25 × 10-7 m in an ideal gas at standard temperature and pressure (0°C and 1 atm). What is the mean free path if the diameter of the molecule and the temperature of the gas are both doubled?

What is the average kinetic energy per particle in 1.00 mole of an ideal gas at a pressure of 1.50 atmospheres and a volume of 2.00 liters?

What is the root mean squared velocity of the nitrogen molecules in one mole of an ideal gas at a pressure of 1.50 atmospheres and a temperature of 20°C? (N2 = 28 u)

The mean free path of a molecule is 2.25 × 10-7 m in an ideal gas at standard temperature and pressure (0°C and 1 atm). What is the mean free path if the pressure of the gas is doubled but the temperature is constant?

A sample of CO2 has a mass of 50.0 grams. What is number of molecules of carbon dioxide in the sample? (C = 12.0 u, O = 16.0 u, and 1 u = 1.66 × 10−27 kg.)

A sample of an ideal gas is in a fixed volume container at pressure P-by heating the gas, the average speed of molecules in the gas triples. What is the new pressure of the gas?

One mole of an ideal gas with a volume of 4.00 liters and a temperature of 0°C is mixed with one mole of an ideal gas with a volume of 2.00 liters and a temperature of 100°C. The volume of the mixture is 6 liters. What is the number density of the mixture?

The diffusion constant for water in air is 2.4 × 10−5 m2/s. What is the distance a water molecule can travel by diffusion in 10 min?

At what approximate temperature would the rms speed of H2 molecules equal the Earth's escape speed (11,200 m/s)?

An ideal gas composed of helium atoms is at a pressure of 2.00 atmospheres and a temperature of 35.0°C. What is the mass density? (He = 4.00 u)

A sample of water has a mass of 10.0 grams. What is the number of molecules of water in the sample? (H = 1 u, O = 16 u, and 1 u = 1.66 × 10−27 kg.)

The mass of 6 million molecules of a diatomic gas is 5.1 × 10-19 kg. What is the atomic mass of the element in this gas?

A 50.00 ml sample of mercury at room temperature (293.0 K) is cooled. What is the volume of the sample when the mercury reaches 273.0 K? The coefficient of volume expansion of mercury is 182.0 × 10−6 K−1.

What is the average distance between air molecules at standard temperature and pressure (0°C and 1 atm)?

The total kinetic energy in one mole of an ideal gas is 4,000 J. If the gas is nitrogen, what is the root mean square velocity of an individual particle in the ideal gas? (N2 = 28 u)

The density of copper at 293 K is 8,940 kg/m3 and its linear expansion coefficient is 17.0 x 10−6 K−1. Consider a hot cube of copper that is 1.0 cm on a side when its temperature is 1.356 K. What is the cube's mass?

If the temperature of a room is 60°F, then what is the temperature of the room in Celsius?

The rms velocity of an oxygen molecule in a gas is 390 m/s. If the absolute temperature is increased by 20%, then what is the rms velocity?

Introduction

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Force and Newtons Laws of Motion

Circular Motion

Conservation of Energy

Linear Momentum

Torque and Angular Momentum

Fluids

Elasticity and Oscillations

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Magnetic Forces and Fields

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The mean free path of a molecule is 2.25 × 10^-7 m in an ideal gas at standard temperature and pressure (0°C and 1 atm). What is the mean free path if the diameter of the molecule and the temperature of the gas are both doubled?

What is the root mean squared velocity of the nitrogen molecules in one mole of an ideal gas at a pressure of 1.50 atmospheres and a temperature of 20°C? (N₂ = 28 u)

The mean free path of a molecule is 2.25 × 10^-7 m in an ideal gas at standard temperature and pressure (0°C and 1 atm). What is the mean free path if the pressure of the gas is doubled but the temperature is constant?

A sample of CO₂ has a mass of 50.0 grams. What is number of molecules of carbon dioxide in the sample? (C = 12.0 u, O = 16.0 u, and 1 u = 1.66 × 10⁻²⁷ kg.)

The diffusion constant for water in air is 2.4 × 10⁻⁵ m²/s. What is the distance a water molecule can travel by diffusion in 10 min?

At what approximate temperature would the rms speed of H₂ molecules equal the Earth's escape speed (11,200 m/s)?

A sample of water has a mass of 10.0 grams. What is the number of molecules of water in the sample? (H = 1 u, O = 16 u, and 1 u = 1.66 × 10⁻²⁷ kg.)

The mass of 6 million molecules of a diatomic gas is 5.1 × 10^-19 kg. What is the atomic mass of the element in this gas?

A 50.00 ml sample of mercury at room temperature (293.0 K) is cooled. What is the volume of the sample when the mercury reaches 273.0 K? The coefficient of volume expansion of mercury is 182.0 × 10⁻⁶ K⁻¹.

The total kinetic energy in one mole of an ideal gas is 4,000 J. If the gas is nitrogen, what is the root mean square velocity of an individual particle in the ideal gas? (N₂ = 28 u)

The density of copper at 293 K is 8,940 kg/m³ and its linear expansion coefficient is 17.0 x 10⁻⁶ K⁻¹. Consider a hot cube of copper that is 1.0 cm on a side when its temperature is 1.356 K. What is the cube's mass?