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Mechanical Engineering - Hydraulics and Fluid Mechanics - Discussion

Discussion Forum : Hydraulics and Fluid Mechanics - Section 2 (Q.No. 35)
Hydraulics and Fluid Mechanics
35.
The viscosity of water is __________ than that of mercury.
higher
lower
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
72 comments Page 6 of 8.
Farcher said:   9 years ago
It is cohesive forces (forces between atoms/molecules of the same type eg water to water) which are important not adhesive forces (forces between atoms/molecules of different type eg water to glass).
Yogesh said:   9 years ago
Yes, I agree with the given answer.
Nick said:   9 years ago
Yes. The answer is correct.

Viscosity of mercury is less than that of water.
Vishal Joshi said:   9 years ago
Viscosity is due to the adhesive force.

Lesser the adhesive force lesser will be the viscosity.

As mercury has lower adhesive force than water, so water is more viscous than mercury.

Also, by experience, we know that mercury can flow easily than water. So its viscosity is lower.
Shubham awate said:   9 years ago
Viscosity of mercury is more than water.
Balak ram said:   9 years ago
Viscosity is the resistance offered by a layer to the motion of adjacent layers. More be the resistance more be the viscosity.
HITESH PATEL said:   9 years ago
I also agree @Sunny Sanchaniya.
RAVI RAJ ANAND said:   9 years ago
I agree with you @Sunny.
Sunny Sanchaniya said:   10 years ago
Since the density of mercury is 13600 kg/cubic meter and density of water is 1000 kg/cubic meter. So mercury is more dense than the water hence its viscosity is higher than water.
Nitesh Rakte said:   10 years ago
Still there is confusion regarding viscosity of both fluids. I think viscosity of mercury is more than water.
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