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Triple point of water is...

Triple point of water is

A

273K

B

373 K

C

203 K

D

193 K

Text Solution

Verified by Experts

The correct Answer is:
A
The triple point of any substance is that temperature and pressure at which the material can exist in all three phases (Solid, liquid and gas) in equilibrium specifically the triple point of water is 273.16 K at 611.2 kPa.
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Answer the following : (a) The triple-point of water is a standard fixed point in modern thermometry. Why ? What is wrong in taking the melting point of ice and the boiling point of water as standard fixed points (as was originally done in the Celsius scale) ? (b) There were two fixed points in the original Celsius scale as mentioned above which were assigned the number 0^(@)C" and "100^(@)C respectively. On the absolute scale, one of the fixed points is the triple-point of water, which on the Kelvin absolute scale is assigned the number 273.16 K. What is the other fixed point on this (Kelvin) scale ? (c ) The absolute temperature (Kelvin scale) T is related to the temperature t_(c) on the Celsius scale by t_(c)=T-273.15 Why do we have 273.15 in this relation, and not 273.16 ? (d) What is the temperature of the triple-point of water on an absolute scale whose unit interval size is equal to that of the Fahrenheit scale ?

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ERRORLESS -S AND P BLOCK ELEMENTS-Ordinary thinking (Water or hydride of oxygen )
  1. The H-O-H angle in water molecule is about

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  2. When two ice cubes are pressed over each other, they unite to form one...

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  3. Triple point of water is

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  4. By adding which of the following process, permanent hardness of water ...

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  5. What is formed when calcium carbide reacts with heavy water?

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  6. The high density of water compared to ice is due to

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  7. The maximum prescribed concentration of cadmium in drinking water in p...

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  8. Heavy water (D(2)O) is

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  9. The alum used for purifying water is

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  10. Synthetic detergents are more effective in hard water than soaps becau...

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  11. H(2)O is hard if it contains

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  12. Sodium sulphate is soluble in water but barium sulphate is insoluble b...

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  13. Temporary hardness of water can be removed by

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  14. Temporary hardness may be removed from water adding.

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  15. Explain why calcuim ion makes water hard, but sodium ion does not.

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  16. Whichh of the following is correct about heavy water ?

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  17. Metal which does not react with cold water but evolves H(2) with steam...

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  18. The boiling point of water is exceptionally high because

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  19. Ozone is used for purifying water because

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  20. Match list I with list II and select the correct answer using the code...

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