# NEET and AIPMT NEET Physics Thermal Properties of Matter MCQ Questions Solved

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If 48 gm of ${\mathrm{O}}_{3}$ at $27°\mathrm{C}$ is mixed with 64 gm of ${\mathrm{O}}_{2}$ at $327°\mathrm{C}$ in an adiabatic vessel as shown in the figure, then the final temperature of the mixture will be

1.  $200°\mathrm{C}$

2.  $227°\mathrm{C}$

3.  $314.5°\mathrm{C}$

4.  $235.5°\mathrm{C}$

(2)

$\left({n}_{1}+{n}_{2}\right){C}_{v}∆T={n}_{1}{C}_{v}∆{T}_{1}+{n}_{2}{C}_{v}∆{T}_{2}\phantom{\rule{0ex}{0ex}}∆T=\frac{{n}_{1}∆{T}_{1}+{n}_{2}∆{T}_{2}}{\left({n}_{1}+{n}_{2}\right)}={227}^{0}C$

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