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Gas Properties Quiz

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Questions and Answers

What is the relationship between temperature and average kinetic energy of gas particles?

Temperature is directly proportional to average kinetic energy (correct)

Temperature is proportional to the square of average kinetic energy

Temperature is inversely proportional to average kinetic energy

Temperature is independent of average kinetic energy

Standard conditions of temperature and pressure (STP) are defined as which of the following?

30°C and 101.3 kPa (1 atm)

20°C and 1 atm

25°C and 1 atm

0°C and 1 atm (correct)

If the temperature of a gas remains constant and its volume is doubled, what happens to the pressure of the gas?

Reduced to $rac{1}{2}$ of the original value. (correct)

Doubled

Quadrupled

Reduced to $rac{1}{4}$ of the original value.

If temperature and volume of a gas are both doubled, what happens to the pressure?

Pressure remains the same Signup and view all the answers

Which of the following statements about gases at standard conditions of temperature and pressure is true?

STP allows comparison of gas volumes regardless of type Signup and view all the answers

What is Avogadro's number associated with?

The number of molecules in one mole of a substance Signup and view all the answers

What formula represents the relationship between pressure, density, and average speed of molecules in an ideal gas?

$P = rac{1}{3} ho m ar{v}^2$ Signup and view all the answers

How does the average speed of Helium molecules compare to that of Oxygen molecules at S.T.P.?

Helium molecules move faster than both Oxygen and Nitrogen molecules Signup and view all the answers

What happens to the root mean square (RMS) velocity of gas molecules when the absolute temperature is tripled?

It increases by a factor of $ ext{sqrt}(3)$ Signup and view all the answers

What is the effect on the temperature of a gas in a container on a fast-moving train?

Temperature remains constant irrespective of motion Signup and view all the answers

Study Notes

Gas Properties

Temperature and average kinetic energy of particles in a gas are directly proportional.
Standard conditions for temperature and pressure (STP) are 0°C and 1 atm.
If temperature is kept constant and volume of a gas is doubled, pressure is reduced to 1/2 of the original value.

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Description

Test your understanding of the fundamental properties of gases, including the relationships between temperature, pressure, and volume. This quiz covers concepts such as kinetic energy and standard conditions for temperature and pressure (STP). Perfect for students studying gas laws in chemistry.