MCQ
$2$ mole of $N_2$ gas at $27\,^oC$ is mixed with $1$ mole $He$ gas at $-73\,^oC$. Find $T_{mix}$ of the mixture
- A$277\,^oC$
- ✓$277\,K$
- C$5\,^oK$
- D$50\,^oC$
$=\frac{2 \times \frac{5}{2} \mathrm{R} \times 300+1 \times \frac{3 \mathrm{R}}{2} \times 200}{2 \times \frac{5 \mathrm{R}}{2}+1 \times \frac{3 \mathrm{R}}{2}}=277 \mathrm{K}$
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