MCQ
The mass of $2.24 \times 10^{-3}m^{3}$ of a gas is $4.4g$ at $273.15K$ and $101.325 \text{ kpa}$. pressure. The gas may be :
- A$\text{NO}$
- B$\mathrm{NO}_2$
- ✓$\mathrm{C}_3 \mathrm{H}_8$
- D$\mathrm{C}_3 \mathrm{H}_8$
✓
Answer
Correct option: C.
$\mathrm{C}_3 \mathrm{H}_8$
$\text{pV}=\frac{\text{m}}{\text{M}}\times\text{RT}$
$\Rightarrow1\text{ atom}\times2.24\text{L}=\frac{4.4\text{g}}{\text{M}}\times0.0821\times273.15$
$\text{M}=44.05\text{g mole}$
$\Rightarrow1\text{ atom}\times2.24\text{L}=\frac{4.4\text{g}}{\text{M}}\times0.0821\times273.15$
$\text{M}=44.05\text{g mole}$
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