I It wets glass
II It needs to be coloured
III It has a low density
Water is not suitable for use as a thermometric liquid because
I only
I and II only
I, II, and III only
II and III only
Explanation
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Discussions (15)
To determine why water is not suitable as a thermometric liquid, let’s examine each statement:
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I. It wets glass
True: Water adheres to the inner surface of glass, making it hard to read the meniscus accurately.
This is a disadvantage.
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II. It needs to be coloured
True: Water is transparent and hard to see in thin capillary tubes unless dyed.
This is a disadvantage.
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III. It has a low density
Not necessarily the main issue: The low density is less of a problem than its high specific heat and narrow temperature range (0°C to 100°C). So, this point is debatable and not a primary reason.
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Best answer: B. I and II only.
myschool the answer is B....
density is only needed in pressure measuring properties not thermometric properties pls
The answer is B. low density doesn't disqualify water. The main physical issues as re wetting and visibility
The answer is B. low density doesn't disqualify water. The main physical issues are wetting and visibility
Density is not among the factors, even if it should be included, then it should have a higher density not lower
The answer is supposed to be B. Pressure doesn't have to do with anything concerning thermometric property and even if it does, it should have a high pressure, not a low one
Greetings, The Myschool Team.
The correct answer is B(I and II only) and not C (I, II, and III only). Density is not considered as a significant property influencing the suitability of a substance as a thermometric substance. Some thermometric fluids e.g alcohol are equally not dense but are equally used as thermometric substances. So, the correct answer is B ( I and II only) and not C(I, II, and III only). Thank you.
pls myschool the answer is option B.
water wet glass and needs to be coloured.
water has low density is not among what we can classify under the properties at this piont
