With an increase in temperature,surface tension of liquid (except molten copper and cadmium)

The maximum force,in addition to the weight,required to pull a wire of $5.0 \, cm$ long from the surface of water at a temperature of $20^\circ C$ is $728 \, dynes$. The surface tension of water is:

Explain why is hot soup more tasty than the colder one?

$A$ square wire frame of each side $L$ is dipped in soap solution. On taking out, a membrane is formed. If the surface tension of the solution is $T$, the force acting on the frame will be (in $T L$)

The force required to take away a flat circular plate of radius $2 \ cm$ from the surface of water is $[$ Surface tension of water $= 70 \times 10^{-3} \ Nm^{-1}, \pi = \frac{22}{7} ]$

$A$ square frame of each side $L$ is dipped in a soap solution and taken out. The force acting on the film formed is ($T =$ surface tension of soap solution). (in $TL$)