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Which of the following is the correct expression for the equation of state of van der Waals gas? - Chemistry

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प्रश्न

Which of the following is the correct expression for the equation of state of van der Waals gas?

पर्याय

  • `["P" + "a"/("n"^2"V"^2)]("V" - "nb") = "nRT"`

  • `["P" + "na"/("n"^2"V"^2)]("V" - "nb") = "nRT"`

  • `["P" + "an"^2/("V"^2)]("V" - "nb") = "nRT"`

  • `["P" + ("n"^2"a"^2)/("V"^2)]("V" - "nb") = "nRT"`

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उत्तर

`["P" + "an"^2/("V"^2)]("V" - "nb") = "nRT"`

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पाठ 6: Gaseous State - Evaluation [पृष्ठ १७८]

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सामाचीर कलवी Chemistry - Volume 1 and 2 [English] Class 11 TN Board
पाठ 6 Gaseous State
Evaluation | Q I. 3. | पृष्ठ १७८

संबंधित प्रश्‍न

Suppose there is a tiny sticky area on the wall of a container of gas. Molecules hitting this area stick there permanently. Is the pressure greater or less than on the ordinary area of walls?


Explain whether a gas approaches ideal behavior or deviates from ideal behaviour if it is compressed to a smaller volume at a constant temperature.


Write the Van der Waals equation for a real gas. Explain the correction term for pressure and volume.


Under which of the following two conditions applied together, a gas deviates most from the ideal behaviour?

(i) Low pressure

(ii) High pressure

(iii) Low temperature

(iv) High temperature


Value of universal gas constant (R) is same for all gases. What is its physical significance?


Compressibility factor, Z, of a gas is given as Z = `(pV)/(nRT)`. What is the value of Z for an ideal gas?


Compressibility factor, Z, of a gas is given as Z = `(pV)/(nRT)`. For real gas what will be the effect on value of Z above Boyle’s temperature?


Pressure versus volume graph for a real gas and an ideal gas are shown in figure. Answer the following questions on the basis of this graph.

(i) Interpret the behaviour of real gas with respect to ideal gas at low pressure.

(ii) Interpret the behaviour of real gas with respect to ideal gas at high pressure.

(iii) Mark the pressure and volume by drawing a line at the point where real gas behaves as an ideal gas.


Isotherms of carbon dioxide gas are shown in figure. Mark a path for changing gas into liquid such that only one phase (i.e., either a gas or a liquid) exists at any time during the change. Explain how the temperature, volume and pressure should be changed to carry out the change.


In van der Waal's equation for the real gas, the expression for the net force of attraction amongst the gas molecules is given by:


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