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Question

Equal volumes of different perfect gases at same temperature and pressure contain

A.

Unequal number of molecules

B.

Equal number of molecules

C.

Any number of molecules depending upon other condition also

D.

None of these

Answer ( Option B)

Equal number of molecules

Solution

Avogadro’s law states that “equal volumes of all gases at the same temperature and pressure, have the same number of molecules”.

Hence, the correct option is (B).

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