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Vapour Pressure

A ring is cut...

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A ring is cut out from a Pt tube 8.5 cm internal diameter and 8.7 cm external diameter. It is supported horizontally from a pan of a balance so that it comes in contact with the water in a glass vessel. If an extra 3.47gm wt. is required to pull it away from the water, Surface tension of water in dyne/cm is

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Q. A ring is cut from a platinum tube

8.5 c m

8.7 c m

external diameter. It is supported horizontally from the pan of a balance, so that it comes in contact with the water in a glass vessel. If an extra

3.103

g.f. is required to pull it away from water, the surface tension of water is

Q. A ring is cut from a platinum tube 8.5 cm internal and 8.7 cm external diameter. It is supported horizontally from the pan of a balance, so that it comes in contact with the water in a glass vessel. If an extra 3.97. If is required to pull it away from water, the surface tension of water is

Q. A ring is cut from a platinum tube having

8.5 c m

8.7 c m

external diameter. It is supported horizontally from a pair of a balance so that it comes in contact with the water in glass vessel. If an extra

3.97 g

weight is required to pull it away from water, the surface tension of water is

Q. A ring is cut from a platinum tube having 10 cm internal and 11 cm external diameter. it is supported horizontally from a pan of the balance so that it comes in contact with water in a glass vessel. what is the surface tension of water if an extra,

4, 752 g_{m}

wt is required to pull it away from water? (g =

10 m s^{-} 2

)

Q. A thin metal ring of internal radius

8 cm

and external radius

9 cm

is supported horizontally from the pan of a balance so that it comes in contact with pure water in a glass vessel. If it is found that an extra weight of

7.48 g

is required to pull the ring out of pure water. The surface tension of water is
[Angle of contact of glass-pure water is

0^{\circ}

g = 10 {m/s}^{2}

)

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