The number of molecules of a gas at STP present in 1 cc is known as:
A
Avogadro number
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B
Boltzman number
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C
Loschmidt number
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D
Universal gas const.
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Solution
The correct option is C Loschmidt number Loschmidt Number is the number of molecules in one cubic centimetre of an ideal gas at standard temperature and pressure which is equal to 2.687×1019.