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NTA Abhyas 2020
Exam
NTA Abhyas
Year
2020
Subject
Chemistry
Chapter
States of Matter

NTA Abhyas 2020 · Chemistry · States of Matter

At STP, 5.6 litre of a gas weighs 60g . The vapour density of gas...

At STP, 5.6 litre of a gas weighs 60g60g. The vapour density of gas is -

Correct answer

120

Step-by-step solution

5.6lit5.6lit gas weight =60gm= 60gm

22.4lit22.4lit gas weight =605.6×22.4gm= \dfrac{60}{5.6} \times 22.4gm

=240gm(molecular weight of gas)= 240\text{gm}( \text{molecular weight of gas} )

Vapour density=Molecularweight2=120\text{Vapour density} = \dfrac{\text{M}\text{o}\text{l}\text{e}\text{c}\text{u}\text{l}\text{a}\text{r}\text{weight}}{2} = 120
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