Surface tension of water is `T_(1)`. When oil spreads on water surface tension becomes `T_(2)`, then

The surface tension of pure water is

The addition of soap changes the surface tension of water to T_(1) and that of salt solution changes to T_(2) . Then

The surface tension of water at freezing point is

Why does oil spread over the surface of water?

Surface tension of water is 0.07 N/m . The weight of water supported by the surface tension in a capillary tube of radius 1 xx 10^(-4) m will be

Surface tension of water with increase of temprature may-

When NaCl is added to water, the surface tension of watr will

Explain why oil spreads over the surface of water?

Surface tension of water with increase of temperature may-