MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Boiling

A large numbe...

Question

A large number of water drops each of radius r combine to have a drop of radius R. If the surface tension is T and the mechanical equivalent of heat is J, then find the rise in temperature.

Open in App

Solution

Suggest Corrections

thumbs-up

1

Similar questions

Q. A large number of water drops, each of radius

r

, combine to form a drop of radius

R

. If the surface tension is

T

and the mechanical equivalent of heat is

J

, the rise in heat energy per unit volume will be :

Q. If a number of little droplets of water each of radius r coalesce to form a single drop of radius R, show that the rise in temperature will be given by

\frac{3 T}{J} (\frac{1}{r} - \frac{1}{R})

where T is the surface tension of water and J is the mechanical equivalent of heat

Q. A number of droplets, each of radius

r

, combine to form a drop of radius

R

T

is the surface tension, the rise in temperature will be

Q. A number of little droplets of water, each of radius 0.1 mm, coalesce to form a single drop of radius 1 mm. Assume the surface tension of water

T = 0.07 N / m

and the mechanical equivalent of heat J

= 4.2 J / c a l

. The change in temperature is (answer upto two decimal places)

Q. A number of little droplets of water, each of radius 0.1 mm, coalesce to form a single drop of radius 1 mm. Assume the surface tension of water

T = 0.07 N / m

and the mechanical equivalent of heat J

= 4.2 J / c a l

. The change in temperature is (answer upto two decimal places)

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Vapour

PHYSICS

Watch in App

explore_more_icon

Explore more

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon