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प्रश्न
The process on an ideal gas, shown in figure, is
विकल्प
isothermal
isobaric
isochoric
none of these
उत्तर
isochoric
According to the graph, P is directly proportional to T.
Applying the equation of state, we get
PV = nRT
\[\Rightarrow P = \frac{nR}{V}T\]
\[\text { Given : } P \alpha T\]
\[\text { This means }\frac{nR}{V} \text { is a constant . So, V is also a constant }.\]
Constant V implies the process is isochoric.
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संबंधित प्रश्न
An ideal gas is trapped between a mercury column and the closed-end of a narrow vertical tube of uniform base containing the column. The upper end of the tube is open to the atmosphere. The atmospheric pressure equals 76 cm of mercury. The lengths of the mercury column and the trapped air column are 20 cm and 43 cm respectively. What will be the length of the air column when the tube is tilted slowly in a vertical plane through an angle of 60°? Assume the temperature to remain constant.
An ideal gas is kept in a long cylindrical vessel fitted with a frictionless piston of cross-sectional area 10 cm2 and weight 1 kg in figure. The vessel itself is kept in a big chamber containing air at atmospheric pressure 100 kPa. The length of the gas column is 20 cm. If the chamber is now completely evacuated by an exhaust pump, what will be the length of the gas column? Assume the temperature to remain constant throughout the process.
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