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  • Question 1
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    Heptane and octane from ideal solution at 373 K the vapour pressure of the pure liquids are 106 kPa and 46 kpa respectively . what will be the vapour pressure, in bar of mixture of 30.0 g of heptane and 34.2 g of octane ?

  • Question 2
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    One having high vapour pressure at temperature below its melting point is?

  • Question 3
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    The vapour pressure of pure liquid A at $$ 80^0 C $$ is

  • Question 4
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    Directions For Questions

    Benzene and toluene form an ideal solution. A liquid solution is formed by mixing 10 moles each of benzene and toluene at 300 K and 200 mmHg pressure. At 300 K, the vapour pressures of pure benzene and toluene are 100 and 40 mm Hg, respectively

    ...view full instructions

    If the pressure over the mixture at 300 K is reduced at what pressure does the first vapour form?

  • Question 5
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    Directions For Questions

    Liquid A ( molar mass = 100 g/mol and density = 1.25 g/ml ) and B ( molar mass = 50 g/mol and density = 1.0 g/ml) form an ideal solution . the molal volume of liquid A increases by afactor of 3800 as it vaporizes at $$ 27^0 $$C and that of liquid B increases by factor of 7600 at $$ 27^0 C $$ A solution of liquid A and B at $$ 27^0 C $$ has a vapour pressure of 54.0 (n R -= 0.08 atm/K-mol ) 

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    The vapour pressure of pure liquid A at $$ 27^0 C $$ is

  • Question 6
    1 / -0

    Directions For Questions

    Benzene and toluene form an ideal solution. A liquid solution is formed by mixing 10 moles each of benzene and toluene at 300 K and 200 mmHg pressure. At 300 K, the vapour pressures of pure benzene and toluene are 100 and 40 mm Hg, respectively

    ...view full instructions

    If the pressure is reduced further, at what presure does the trace of liquid disppear?

  • Question 7
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    Directions For Questions

    Liquids A and B forms an ideal solution . At TK , $$ P^0_A = 0.4\, bar $$ and $$ P^0_B = 0.6\, bar $$. In a cylinder piston arrangement, 2.0 moles of vapours of liquid A and 3.0 moles of vapours of liquid B are taken at TK and 0.3 bar

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    Which of the following is the only incorrect informarion regarding the composition of the system at 0.51 bar pressure ?

  • Question 8
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    At $$80^o C$$, the vapour pressure of pure liquid A is 520 mm Hg and that of pure liquid B is 1000 mm Hg. If a mixture solution of A and B boils at $$80^o C$$and 1 atm pressure, the amount of A in the mixture is :

    (1 atm=760 mm Hg)

  • Question 9
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    Directions For Questions

    Liquids A and B forms an ideal solution . At TK , $$ P^0_A = 0.4\, bar $$ and $$ P^0_B = 0.6\, bar $$. In a cylinder piston arrangement, 2.0 moles of vapours of liquid A and 3.0 moles of vapours of liquid B are taken at TK and 0.3 bar

    ...view full instructions

    If the vapour are compressed slowly and isothermally , at what pressure , the first drop of liquid will appear ?

  • Question 10
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    For ideal binary solution
    $$p=x_{A}.p_{A}^{0}+x_{B}.p_{B}^{0}$$
    This equation reflects

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