Which one of the following is correct about surface \( \mathrm{P} \...

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Which one of the following is correct about surface
\( \mathrm{P} \) tension \( (\mathrm{ST}) \) and viscosity \( (\eta) \) ?

W
(1) Both decrease with increase in temperature
(2) Both increase with increase in temperature
(3) ST increases and \( \eta \) decreases as temperature increases
(4) ST decreases and \( \eta \) increases as temperature increases
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