Home
Class 12
CHEMISTRY
Normal boiling point (T(N)) is defined a...

Normal boiling point `(T_(N))` is defined as the temperature when V.P. of liquid become equal to `1`atm and standard boiling point `(T_(S))` is defind becomes equal to `1`bar . Which one is not correct .if water is considered?

A

`T_(N)=100^(@)C`

B

`T_(S) gt 100^(@)C`

C

`T_(S) lt 100^(@)C`

D

`T_(S) lt T_(N)`

Text Solution

Verified by Experts

The correct Answer is:
B

`T_(S)=372.6K` for water since `1` bar `lt 1`
`(1 "bar" = 0.998 "atm")`.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • SOLUTIONS

    A2Z|Exercise Depression Of Freezing Point|28 Videos
  • SOLUTIONS

    A2Z|Exercise Osmotic Pressure|40 Videos
  • SOLUTIONS

    A2Z|Exercise Relative Lowering Of Vapour Pressure|24 Videos
  • SOLID STATE

    A2Z|Exercise Section D - Chapter End Test|30 Videos
  • SURFACE CHEMISTRY

    A2Z|Exercise Section D - Chapter End Test|30 Videos

Similar Questions

Explore conceptually related problems

Boiling point is the temperature at which the vapour pressure becomes equal to..........

The effect of increase of the enthaly of vaporisation of a liquid (in joules mol^(-1) ) to its boiling point (in degrees K) is equal to ………….. . This rule is known as …………………..

Knowledge Check

  • Normal boiling point of a liquid is that temperature which vapour pressure of the liquid is equal to:

    A
    zero
    B
    `380 mm` of `Hg`
    C
    `760 mm` of `Hg`
    D
    `100 mm` of `Hg`
  • The boiling point of a liquid is the temperature at which the vapor pressure of the liquid is equal to

    A
    760 torr
    B
    external force
    C
    750 torr
    D
    700 torr
  • If the solution boils at a temperature T_1 and solvent at a temperature T_2 the elevation of boiling point is given by:

    A
    `T_1 +T_2`
    B
    `T_1-T_2`
    C
    `T_2-T_1`
    D
    `(T_1//T_2)`
  • Similar Questions

    Explore conceptually related problems

    If the solution boils at a temperature T _(1 ) and the solvent at a temperature T _(2) the elevation ofboiling point is given by

    Glucose is added to 1 litre water to such an extent that (Delta T_(f))/(K_(f)) becomes equal to (1)/(1000) , the weight of glucose added is:

    If the solution boils at a temperature T_(1) and the solvent at a temperature T_(2) the elevation of boiling point is given by

    In the case of immiscible liquids, the addition of one liquid to another does not after the properties of either liquid. Hence liquid exerts its own vapour pressure independently of the pressure of the other. Since boiling point of any system is the temperature at which its total vapour pressure becomes equal to the prevailing pressure, so by knowing the miscibility of two liquids, we can find out boiling temperature. If we mix two immiscible liquids A and B then boiling point of the mixture will be (Given p_(A)^(@) gt p_(B)^(@))

    In the case of immiscible liquids, the addition of one liquid to another does not after the properties of either liquid. Hence liquid exerts its own vapour pressure independently of the pressure of the other. Since boiling point of any system is the temperature at which its total vapour pressure becomes equal to the prevailing pressure, so by knowing the miscibility of two liquids, we can find out boiling temperature. An immiscible mixture of water and quinoline is prepared and distillation is done. If p_("quinoline")^(@) = 7.9 torr and p_("water")^(@) = 732.04 torr at the boiling point of 98.9^(@)C . Find out the relative masses of water and quinoline in the distillate. If it is given that no of moles of any component in the vapour phase prop its vapour pressure. (Molar mass of water = 18 g/mol and molar mass of quinoline = 129g//mol )