Which of the following statements concerning real gases are correct? (1) nonidea
ID: 926131 • Letter: W
Question
Which of the following statements concerning real gases are correct?(1) nonideality in gas behavior becomes more pronounced as the temperature of a gas is decreased. (2) The measure pressure of a container of chlorine is generally greater than the pressure calculated by the ideal gas law. (3) nonideality in gas behavior becomes more pronounced as the pressure of a gas is decreased.
A. 1 and 2 B. 2 and 3 C. 1 only D. 2 only E. 3 only Which of the following statements concerning real gases are correct?
(1) nonideality in gas behavior becomes more pronounced as the temperature of a gas is decreased. (2) The measure pressure of a container of chlorine is generally greater than the pressure calculated by the ideal gas law. (3) nonideality in gas behavior becomes more pronounced as the pressure of a gas is decreased.
A. 1 and 2 B. 2 and 3 C. 1 only D. 2 only E. 3 only
(1) nonideality in gas behavior becomes more pronounced as the temperature of a gas is decreased. (2) The measure pressure of a container of chlorine is generally greater than the pressure calculated by the ideal gas law. (3) nonideality in gas behavior becomes more pronounced as the pressure of a gas is decreased.
A. 1 and 2 B. 2 and 3 C. 1 only D. 2 only E. 3 only
Explanation / Answer
Answer is D. 2 only
Ideal gas behavior supposes that the only interaction between molecules is when they collide. However, there are weak attractive forces between the molecules in a real gas. So, when you raise the pressure you're compressing the gas into a smaller volume, making the attractive forces larger. As you decrease the temperature, the kinetic energy of the molecules decreases. When the molecules are moving quickly, the attractive forces have negligible impact. As they move more slowly, their impact increases.
in conclusion, increase the pressure or decrease the temperature, the effects of the forces between gas molecules become more pronounced, leading to non-ideal behavior
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