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  • Question 1
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    A sample of an ideal gas occupies 20 L under a pressure of 0.5 atm and under isothermal condition. On increasing its pressure to 1.0 atm, its volume will be

     

  • Question 2
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    A 10.0 cm column of air is trapped by a column of Hg 4.00 cm long in a capillary tube of uniform bore when the tube is held horizontally at 1 atm. Length of the air column when the tube is held vertically with the open end up is

  • Question 3
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    Volume of an ideal gas is to be decreased by 10% by increase of pressure by x% under isothermal condition. Thus, x is

  • Question 4
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    Density of an ideal gas at 298 K and 1.0 atm is found to be 1.25 kg m-3. Density of the gas at 1.5 atm and at 298 K is 

  • Question 5
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    An ideal gas is at 300 K and 1 atm. Then volume remains constant if

     

  • Question 6
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    The pressure of a 1:4 mixture of dihydrogen and dioxygen enclosed in a vessel is one atmosphere. What would be the partial pressure of dioxygen?

  • Question 7
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    At 298 K, which of the following gases has the lowest average molecular speed?

     

  • Question 8
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    Charle's law defines value of 'k' as

  • Question 9
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    By what ratio will the average velocity of the molecules in a gas change when the temperature is raised from 50°C to 200°C?

  • Question 10
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    For Charles’ law, graphical representation between log V and log T under isobaric condition is shown below for equation V = kT.

    Q. Relation between p1, p2 and p3 is

     

  • Question 11
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    For Charles’ law, graphical representation between log V and log T under isobaric condition is shown below for equation V = kT

     

    Q. Volume V = constant k, when

  • Question 12
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    Graphicaily Boyle’s law can be represented by various options depending on coordinates. Match the graphs in Column t with their coordinates in Column II and select the correct alternate from the codes given below.


     

     

  • Question 13
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    Direction (Q. Nos. 13 and 14) This section contains 2 questions. when worked out will result in an integer from 0 to 9 (both inclusive).

    Isothermally compressibility of an ideal gas is 

    Q. What is the value of a at 0.2 bar?

     

  • Question 14
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    Cubic expansion coefficient (β) for an ideal gas is 

    Q. Its value at 250 K is x * 10-3 K -1. What is value of x?

     

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