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The triple-point of water is a standard ...

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 bothing point of water as standard fixed points as was originally done in the Celsius scale) ?

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Triple - point has a unique temperature, fusion point and boiling point temperature depend on pressure .
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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) ?

What are fusion and melting point ?

The triple point of water is at ...... pressure and ...... temperature.

What is the effect of pressures on boiling point of water ?

NCERT GUJARATI-THERMAL PROPERTIME OF MATTER-EXERCISES
  1. Two absolute scales A and B have triple points of water defined to be ...

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  2. The electrical resistance in ohms of a certain thermometer varies with...

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  3. The triple-point of water is a standard fixed point in modern thermome...

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  4. There were two fixed points in the original Celsius scale as mentioned...

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  5. The absolute temperature (Kelvin scale) T is related to the temperatur...

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  6. What is the temperature of the triple-point of water on an absolute sc...

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  7. Two ideal gas thermometers A and B use oxygen and hydrogen respectivel...

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  8. A steel tape Im long is correctly calibrated for a temperature of 27.0...

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  9. A large steel wheel is to be fitted on to a shaft of the same material...

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  10. A hole is drilled in a copper sheet. The diameter of the hole is 4.24...

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  11. A brass wire 1.8 m long at 27 ^(@) C is held taut with little tension ...

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  12. A brass rod of length 50 cm and diameter 3.0 mm is joined to a steel r...

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  13. The coefficient of volume expansion of glycerine is 49 xx 10^(-5) K^(-...

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  14. A 10 kW drilling machine is used to drill a bore in a small aluminium ...

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  15. A copper block of mass 2.5 kg ts heated in a furnace to a temperature ...

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  16. In an experiment on the specific heat of a metal, a 0.20 kg block of t...

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  19. A' thermacole' icebox is a cheap and an efficient method for storing s...

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