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  • An open vessel at  is rated until <img alt="\frac{5}{8}" src="ht

An open vessel at 27^{\circ} \mathrm{C}  is rated until \frac{5}{8} th at the air in it has been expelled.
Assuming that the volume Remain constant, calculate the temperature at which the vessels was heated?

Option: 1

527^{\circ} \mathrm{C}


Option: 2

500^{\circ} \mathrm{C}


Option: 3

2


Option: 4

480^{\circ} \mathrm{C}


Answers (1)

best_answer

If \frac{5}{8}^{th} air is expelled out then remaining Air = \frac{3}{8}

In the open vessels volume and pressure both constant but Moles are decreasing.

\mathrm{n_{1} T_{1}=n_{2} T_{2}}
\mathrm{n_{1} \times 300=\left(\frac{3}{8} n_{1}\right) T_{2}}
\mathrm{T_{2}=\frac{8}{3} \times T_{1}=\frac{8}{3} \times 300=800}

\mathrm{\text { So }=800-273=527^{\circ} \mathrm{C}}

Posted by

Ajit Kumar Dubey

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