A sample of an ideal gas has a volume of 0.0100 m3,a pressure of 100 $\times$ 103 Pa,and a temperature of 300 K.What is the number of moles in the sample of gas?

A) 0.302 B) 0.330 C) 0.375 D) 0.401 E) 0.502 A) 0.302 B) 0.330 C) 0.375 D) 0.401 E) 0.502

Exam 13: Temperature and the Ideal Gas

A copper plate has a hole with a diameter of 2.50 cm.A copper shaft with a diameter of 2.501 cm is to be inserted into the hole.If the linear coefficient of thermal expansion for copper is 17.0 $\times$ 10^-6/ $^{\circ}$ C,then what is the decrease in temperature the copper shaft has to be subjected to in order to allow the shaft to just fit inside the hole?

(Multiple Choice)

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Question 61

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 62

The rms velocity of a He molecule in helium gas with a temperature of 20 $^{\circ}$ C is 1,352 m/s.What is the rms velocity of the molecule if the temperature of the gas is tripled?

(Multiple Choice)

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Question 63

2.00 moles of an ideal gas at standard temperature and volume changes its temperature by 1 $^{\circ}$ C.What is the change in the pressure?

(Multiple Choice)

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Question 64

A molecule takes 3.0 seconds to diffuse across a membrane.If the thickness of the membrane is doubled,then how long does it take the molecule to diffuse across the thicker membrane?

(Multiple Choice)

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Question 65

The diameter of a nitrogen molecule is about 0.29 nm.In a tank of nitrogen at a pressure of 2.5 atm and temperature 273 K,what is the mean free path of a nitrogen molecule?

(Multiple Choice)

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Question 66

A particular chemical reaction that produces hydrogen gas as a byproduct has an activation energy of 19.2 $\times$ 10^-20 J.If the reaction produces 0.15 $\times$ 10^-3 mol H₂/hr at room temperature (20 $^{\circ}$ C),what is the rate of production of H₂ at 52 $^{\circ}$ C by means of this reaction?

(Multiple Choice)

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Question 67

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

(Multiple Choice)

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Question 68

A sample of an ideal gas has a volume of 0.0100 m³,a pressure of 100 $\times$ 10³ Pa,and a temperature of 300 K.What is the number of moles in the sample of gas?

(Multiple Choice)

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Question 69

An ideal gas is at a temperature of 60 $^{\circ}$ C and a pressure of 1.50 atmospheres.What is the volume per particle of the gas?

(Multiple Choice)

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Question 70

A particular chemical reaction occurs at room temperature (293 K)at half the rate that it does at 300 K.What is the activation energy for this reaction?

(Multiple Choice)

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Question 71

Oxygen molecules are 16 times more massive then hydrogen molecules.At a given temperature,the average molecular kinetic energy of oxygen,compared to hydrogen

(Multiple Choice)

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Question 72

A 100 liter water tank is filled to the brim with water when the temperature is 5.00 $^{\circ}$ C.Water has a coefficient of volume expansion of 207 $\times$ 10^-6/ $^{\circ}$ C.If the temperature of the water tank is increased to 60.0 $^{\circ}$ C,what is the volume of water that overflows the tank (ignore the expansion of the tank)?

(Multiple Choice)

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Question 73

If the root mean square velocity of a particle in a gas is 450 m/s,and the particle collides with other particles every 2.0 $\times$ 10^-9 seconds on the average,then the mean free path is

(Multiple Choice)

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Question 74

147.5 ml of ethyl alcohol (coefficient of volume expansion $\beta$ = 1120 $\times$ 10^-6 K^-1) at a temperature of 273.1 K is measured into a 150.0 ml glass beaker (whose coefficient of volume expansion is negligible by comparison).To what temperature does the beaker have to be warmed for it to be completely full (i.e.for the volume of the alcohol to reach 150.0 ml)?

(Multiple Choice)

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Question 75

At what temperature is the Celsius temperature and the Fahrenheit temperature are same?

(Multiple Choice)

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Question 76

A 40.0 liter gas tank is filled to the brim with gasoline when the temperature is 5.00 $^{\circ}$ C.Gasoline has a coefficient of volume expansion of 950 $\times$ 10^-6/ $^{\circ}$ C.If the gas tank is moved into the sun of a hot summer day,the temperature of the gas tank is increased to 60.0 $^{\circ}$ C.What is the volume of gasoline that overflows the tank (ignore the expansion of the gas tank)?

(Multiple Choice)

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Question 77

The mean free path for a nitrogen molecule in a tank of dry nitrogen at 273 K is 0.15 $\mu$ m.If the diameter of a nitrogen molecule is 0.29 nm,what is the pressure in the tank?

(Multiple Choice)

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Question 78

The density of copper at 293 K is 8940 kg/m³ and its linear expansion coefficient is 17.0 $\times$ 10^-6 K^-1.Consider a hot cube of copper that is 1.0 cm on a side when its temperature is 1356 K.What is the cube's mass?

(Multiple Choice)

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Question 79

The temperature of a copper cube is increased by 35.0 $^{\circ}$ C.The linear coefficient of thermal expansion is 17.0 $\times$ 10^-6/ $^{\circ}$ C.The fractional change in volume is

(Multiple Choice)

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Question 80

Showing 61 - 80 of 86

Exam 13: Temperature and the Ideal Gas

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?

The rms velocity of a He molecule in helium gas with a temperature of 20 ∘^{\circ}∘ C is 1,352 m/s.What is the rms velocity of the molecule if the temperature of the gas is tripled?

2.00 moles of an ideal gas at standard temperature and volume changes its temperature by 1 ∘^{\circ}∘ C.What is the change in the pressure?

A molecule takes 3.0 seconds to diffuse across a membrane.If the thickness of the membrane is doubled,then how long does it take the molecule to diffuse across the thicker membrane?

The diameter of a nitrogen molecule is about 0.29 nm.In a tank of nitrogen at a pressure of 2.5 atm and temperature 273 K,what is the mean free path of a nitrogen molecule?

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

A sample of an ideal gas has a volume of 0.0100 m3,a pressure of 100 ×\times× 103 Pa,and a temperature of 300 K.What is the number of moles in the sample of gas?

An ideal gas is at a temperature of 60 ∘^{\circ}∘ C and a pressure of 1.50 atmospheres.What is the volume per particle of the gas?

A particular chemical reaction occurs at room temperature (293 K)at half the rate that it does at 300 K.What is the activation energy for this reaction?

Oxygen molecules are 16 times more massive then hydrogen molecules.At a given temperature,the average molecular kinetic energy of oxygen,compared to hydrogen

If the root mean square velocity of a particle in a gas is 450 m/s,and the particle collides with other particles every 2.0 ×\times× 10-9 seconds on the average,then the mean free path is

At what temperature is the Celsius temperature and the Fahrenheit temperature are same?

The mean free path for a nitrogen molecule in a tank of dry nitrogen at 273 K is 0.15 μ\muμ m.If the diameter of a nitrogen molecule is 0.29 nm,what is the pressure in the tank?

The density of copper at 293 K is 8940 kg/m3 and its linear expansion coefficient is 17.0 ×\times× 10-6 K-1.Consider a hot cube of copper that is 1.0 cm on a side when its temperature is 1356 K.What is the cube's mass?

The temperature of a copper cube is increased by 35.0 ∘^{\circ}∘ C.The linear coefficient of thermal expansion is 17.0 ×\times× 10-6/ ∘^{\circ}∘ C.The fractional change in volume is

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The rms velocity of a He molecule in helium gas with a temperature of 20 $^{\circ}$ C is 1,352 m/s.What is the rms velocity of the molecule if the temperature of the gas is tripled?

2.00 moles of an ideal gas at standard temperature and volume changes its temperature by 1 $^{\circ}$ C.What is the change in the pressure?

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

A sample of an ideal gas has a volume of 0.0100 m³,a pressure of 100 $\times$ 10³ Pa,and a temperature of 300 K.What is the number of moles in the sample of gas?

An ideal gas is at a temperature of 60 $^{\circ}$ C and a pressure of 1.50 atmospheres.What is the volume per particle of the gas?

If the root mean square velocity of a particle in a gas is 450 m/s,and the particle collides with other particles every 2.0 $\times$ 10^-9 seconds on the average,then the mean free path is

The mean free path for a nitrogen molecule in a tank of dry nitrogen at 273 K is 0.15 $\mu$ m.If the diameter of a nitrogen molecule is 0.29 nm,what is the pressure in the tank?

The density of copper at 293 K is 8940 kg/m³ and its linear expansion coefficient is 17.0 $\times$ 10^-6 K^-1.Consider a hot cube of copper that is 1.0 cm on a side when its temperature is 1356 K.What is the cube's mass?

The temperature of a copper cube is increased by 35.0 $^{\circ}$ C.The linear coefficient of thermal expansion is 17.0 $\times$ 10^-6/ $^{\circ}$ C.The fractional change in volume is