General Knowledge - Physics - Discussion
Discussion Forum : Physics - Section 1 (Q.No. 52)
52.
Mercury is commonly used as a thermometric fluid rather than water because
Discussion:
26 comments Page 1 of 3.
Nipu kalita said:
7 years ago
The density of Mercury and tube length are related to barometer only.
In thermometer, Mercury is used because it has a higher coefficient of thermal expansion, that's why a small change in temp can be measured.
In thermometer, Mercury is used because it has a higher coefficient of thermal expansion, that's why a small change in temp can be measured.
Balaji lakhane said:
7 years ago
Both specific heat capacity and the density of mercury has higher and lower simultaneously that's why both options are correct.
Kenxz said:
8 years ago
Can WATER be really used in a thermometer? I thought it was alcohol only.
Kushal Pooni said:
8 years ago
One can use color in water if it is about visibility only, at least provide suitable and more scientific information rather than being layman.
(2)
Rahim Pinjari said:
8 years ago
It's not because of visibility factor.
Robert Cohan said:
8 years ago
I have a question. Why does mercury appear to defy the law of gravity when subjected to the extreme cold?
Deepak said:
8 years ago
Mercury is used in thermometers because it has high coefficient of thermal expansion. So, any slight change of temperature is easily noticed and also it is clearly visible in glass tube as compared to water.
Agen said:
9 years ago
Liquid Mercury has a very low vapor pressure than water. So it will be more sensitive than water to the changes in the atmospheric pressure and ups faster to store the changes.
Ashok said:
9 years ago
The answer is mercury is used in barometer because of having a higher density than water as we required a huge tube in case of water.
The same reason why it is used in thermometer is the high coefficient of expansion and bright visibility.
But the options given above have no coefficient of thermal expansion. So the answer is Visibility.
The same reason why it is used in thermometer is the high coefficient of expansion and bright visibility.
But the options given above have no coefficient of thermal expansion. So the answer is Visibility.
Centrik said:
9 years ago
C is the correct answer.
Mercury can be seen compared to water. Because of its silvery colour.
Mercury can be seen compared to water. Because of its silvery colour.
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