Surface tension of water is T1. When oil spreads on water surface tension becomes T2, the

Question

Surface tension of water is T1. When oil spreads on water surface tension becomes T2, the (A) T1 > T2 (B) T1 = T2 (C) T1 < T2 (D) T1=(T2/2)

Tardigrade Admin · Accepted Answer

A highly soluble substance like sodium chloride ordinarily increases the surface tension. But sparingly soluble substances reduce the surface tension. Oil being sparingly soluble reduces the surface tension. i.e.

T_{2} < T_{1}

or

T_{1} > T_{2}

Q. Surface tension of water is $T_{1}$ . When oil spreads on water surface tension becomes $T_{2}$ , the

$T_{1} > T_{2}$

$T_{1} = T_{2}$

$T_{1} < T_{2}$

$T_{1} = \frac{T _{2}}{2}$

A highly soluble substance like sodium chloride ordinarily increases the surface tension. But sparingly soluble substances reduce the surface tension. Oil being sparingly soluble reduces the surface tension. i.e.
$T_{2} < T_{1}$ or $T_{1} > T_{2}$

Q. Surface tension of water is T1​. When oil spreads on water surface tension becomes T2​, the

T1​>T2​

T1​=T2​

T1​<T2​

T1​=2T2​​