AP EAMCET · PHYSICS · Thermodynamics
'A horizontal uniform glass tube of \(100 \mathrm{~cm}\), length sealed at both ends contains \(10 \mathrm{~cm}\) mercury column in the middle. The temperature and pressure of air on either side of mercury column are respectively \(31^{\circ} \mathrm{C}\) and \(76 \mathrm{~cm}\) of mercury. If the air column at one end is kept at \(0^{\circ} \mathrm{C}\) and the other end at \(273^{\circ} \mathrm{C}\), then the pressure of air which is at \(0^{\circ} \mathrm{C}\) is : (in \(\mathrm{cm}\) of \(\mathrm{Hg}\) )
- A 76
- B 88.2
- C 102.4
- D 122
Answer & Solution
Correct Answer
(C) 102.4
Step-by-step Solution
Detailed explanation
On keeping the temperature of the ends of tube at \(0^{\circ} \mathrm{C}\) and \(273^{\circ} \mathrm{C}\) Applying ideal gas equation \(\frac{p_1 V_1}{T_1}=\frac{p_2 V_2}{T_2}=\frac{p_3 V_3}{T_3}\)…
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