A) \[{{4}^{o}}C\]
B) \[{{35}^{o}}C\]
C) \[{{60}^{o}}C\]
D) \[{{75}^{o}}C\]
Correct Answer: D
Solution :
The surface tension of water is 72 dyne/cm at \[{{25}^{o}}C\]It would take a force of 75 dyne to break a surface film of water 1cm long. The surface tension of water decreases significantly with temperature as shown in the graph below: Out of the given four option \[75{}^\circ C\] is the highest temperature, hence, surface tension is lowest.You need to login to perform this action.
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