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Mean Free Path, Collision Frequency

Statement: Re...

Question

Statement: Real gases follow the ideal gas law (no deviation) at sufficiently low densities

State whether the given statement is true or false.

A

True

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B

False

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Solution

The correct option is A True
Real gas behaves ideally at high temperature and low pressure which also corresponds to low density

Hence, the given statement is $t r u e$

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Similar questions

Q. In the following statements:
(A) Ideal gases are liquefied only at very low temperatures.
(B) Ideal gases cannot be liquefied.
(C) Ideal gas behaviour is observed by real gases at low pressures.
(D) Ideal gases do not exist.
The correct statements are:

The gases which strictly follow the general equation

(P V = n R T)

are called ideal or perfect gases. Actually, there is no gas which is perfect or ideal. A real gas is one which actually exists, whether it obeys gas laws strictly or not. Under ordinary conditions, only those gases nearly behave as ideal or perfect which have very low boiling points such as nitrogen, hydrogen, etc. The most easily liquefiable and highly soluble gases such as ammonia, carbon dioxide, sulphur dioxide show large deviations.
A very convenient method of studying deviation of real gases from ideal behaviour is through a compressibility factor

(Z)

.

Z = \frac{P V}{n R T}

Z = 1

, for ideal gases.
(ii)

Z \neq 1

, for real gases.

Consider the equation

Z = \frac{P V}{n R T}

; which of the following statements is correct?

Q. Statement A: Gases deviate from their ideal behaviour at low temperatures.
Statement B: At low temperatures, the molecular attractions become significant. This leads to a deviation from the ideal behaviour of a gas.

C_{P} - C_{V}

for an ideal gas is

R

.
State whether the statement is True or False

State whether the given statement is True or False :

There are no ideal processes, where energy degradation is not possible.

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Mean Free Path, Collision Frequency

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