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Last Updated On [03-11-2023]

Which of the following statements is/are true?

a)

Hydrogen diffuses four times faster than oxygen

b)

The temperature of a real gas changes when it expands adiabatically in vacuum

c)

An ideal gas undergoes cooling effect when it suffers an adiabatic expansion in vacuum

d)

The Joule-Thomson coefficient  of an ideal gas is zero


Question ID - 102747 :-

Which of the following statements is/are true?

a)

Hydrogen diffuses four times faster than oxygen

b)

The temperature of a real gas changes when it expands adiabatically in vacuum

c)

An ideal gas undergoes cooling effect when it suffers an adiabatic expansion in vacuum

d)

The Joule-Thomson coefficient  of an ideal gas is zero

1 Answer
5876 Votes
3537

Answer Key : (a,d) -

(a,d)

Hint:

 (for ideal gas)

Because (for ideal gas)

 (constant)



Next Question :

Consider a collision between an oxygen molecule and a hydrogen molecule in a mixture of oxygen and hydrogen kept at room temperature. Which of the following is/are possible?

a)

The kinetic energies of both the molecules increase

b)

The kinetic energies of both the molecules decrease

c)

The kinetic energy of the oxygen molecule increases and that of the hydrogen molecule decreases

d)

The kinetic energy of the hydrogen molecule increases and that of the oxygen molecule decreases


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