Home
Class 11
PHYSICS
A thermal insulated vessel contains some...

A thermal insulated vessel contains some water at `0^(@)C`. The vessel is connected to a vaccum pump to pum out water vapour. This results in some water getting frozen. It is given latent heat of vaporization of water at `0^(@)C = 21 xx 10^(5) J//kg` and latent heat of freezing of water `=3.36 xx 10^(5) J//kg`. the maximum percentage amount of water vapour that will be solidified in this manner will be:

A

`86.2 %`

B

`33.6 %`

C

`21 %`

D

`24.36 %`

Text Solution

Verified by Experts

The correct Answer is:
A
Let `m_(1)` mass is vaporised and `m_(2)` mass gets solidified
Then heat taken in vaporisation = heat given during
or `m_(1)(21 xx 10^(5)) = (m_(2))(3.36 xx 10^(5))`.
Promotional Banner

Topper's Solved these Questions

  • CALORIMETRY

    NARAYNA|Exercise NCERT(Single correct)|2 Videos

  • CALORIMETRY

    NARAYNA|Exercise NCERT(Multi correct)|1 Videos

  • CALORIMETRY

    NARAYNA|Exercise Level-II (C.W)|10 Videos

  • CIRCULAR MOTION

    NARAYNA|Exercise LEVEL II(H.W)|51 Videos

Similar Questions

Explore conceptually related problems

The specific latent heat of vaporization of water is …………

The latent heat of vaporization of water is "….............." .

What is meant by saying that the latent heat of vaporisation of water is 22.5 xx 10^(5) J//kg ?

A thermally isolated vessel contains 100g of water at 0^(@)C . When air above the water is pumped out, some of the water freezes and some evaporates at 0^(@)C itself. Calculate the mass of the ice formed such that no water is left in the vessel. Latent heat of vaporization of water at 0^(@)C=2.10xx10^(6)J//kg and latent heat of fusion of ice =3.36xx10^(5)J//kg .

In the previous question, if the specific latent heat of vaporization of water at 0^@C is eta times the specific latent heat of freezing of water at 0^@C , the fraction of water that will ultimately freeze is

A non conducting vessel thermally insulated from its surroundings, contains 100 g of water 0^(@)C . The vessel is connected to a vacuum pump to pump to water vapour. As a result of this, some water is frozen. If the removal of water vapour is continued, what is the maximum amount of water that can be frozen in this manner? Laten heat of vaporisation of water =22.5xx10^(5)Jkg^(-1) and latent heat of fusion of ice =3.36xx10^(5)Jkg^(-1)

A thermally isolated vessel contains 100 g of water at 0^(@)C when air above the water is pumped out, some of the water freezes and some evaporates at 0^(@)C itself. Calculate the mass at 0^(@)C=2.10xx10^(6) j//kg and latent heat of fusion of ice =3.36xx10^(5) j//kg .

A thermally insulated vessel contains 150g of water at 0^(@)C . Then the air from the vessel is pumped out adiabatically. A fraction of water turms into ice and the rest evaporates at 0^(@)C itself. The mass of evaporated water will be closest to : (Latent heat of vaporization of water =2.10xx10^(6)jkg^(-1) and Latent heat of Fusion of water =3.36xx10^(5)jkg^(-1) )

A thermally isolated vessel is maintained inside at 0^@C and contains 200 g of water. When the air above the water is pumped out, some of the water freezes while rest of it evaporated at 0^@C itself. Determine the mass of water that freezed. Take, Latent heat of vapourisation of water at 0^@C = 2.19 xx 10^3 J//g Latent heat of fusion of ice = 3.36 xx 10^2 J//g