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  • The volume occupied by 4.75 g of Acetylene Gas at and 740MmHg Pr

The volume occupied by 4.75 g of Acetylene Gas at 50^{\circ} \mathrm{C} and 740MmHg Pressure is ---- L ?

Option: 1

10 L


Option: 2

15 L


Option: 3

5 L


Option: 4

15.5 L


Answers (1)

best_answer

\mathrm{\text { Given Mass }=4.75 \mathrm{~g} \rightarrow \mathrm{C}_2 \mathrm{H}_2(\mathrm{~g})}

\mathrm{\text { Mole }=\frac{4.75}{26} \text { Mole }}

\mathrm{\text { Temperature }=50+273=323 \mathrm{~K}}

\mathrm{\begin{aligned} & P=\frac{740}{760} \mathrm{~atm} \\ & R=.0826\frac{ \mathrm{l \ atm}}{\text { Mole } \mathrm{k}} \end{aligned}}

\mathrm{v=\frac{n R T}{p}=\frac{4.75}{26} \times \frac{.082 \times 323}{\left(\frac{740}{760}\right)}}

\mathrm{V=5.0059 l \approx 5 l}

Posted by

Devendra Khairwa

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