How does surface tension change with temperature?

Define surface tension.

How ionic product of water change with temperature ?

What is surface tension? What is the effect of temperature on surface tension ?

A block of wood is floating on water at 0^@ C to 8^@C .How does the volume,v change with use in temperature?

How does specific heat vary with temperature.

The rate of a reaction quadruples when the temperature changes from 293 K to 313 K. Calculate the energy of activation of the reaction assuming that it does not change with temperature.

The rate of a reaction increases four times when the temperature changes from 300 K to 320 K. Calculate the energy of activation of the reaction assuming that it does not change with temperature (R = 8.314 JK^-1 mol^-1) .

How does the conductance of a semiconducting material change with rise in temperature?

Classify materials on the baiss of their behaviour in a magnetic field. Under which cateogry does iron come? How does the magnetic property of iron change with increase of temperature?