A) \[4{}^\circ C\]
B) \[25{}^\circ C\]
C) \[50{}^\circ C\]
D) \[75{}^\circ C\]
Correct Answer: D
Solution :
The surface tension of water is 72 dyne/cm at\[{{25}^{o}}C\]. It would take a force of 72 dyne to break a surface film of water \[1\,\,cm\] long. The surface tension of water decreases significantly with temperature as shown in the graph below. Out of the given four options \[{{75}^{o}}C\] is the highest temperature, at which surface tension is lowest.You need to login to perform this action.
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