Hygrometry- Old is Gold

  1. Why are dews formed in the early morning hours?
  2. Define due point.
  3. Define triple point.
  4. Why is the triple point of water chosen as a standard fixed point in modern thermometry?
  5. Distinguish between saturated and unsaturated vapour pressure.
  6. Distinguish between a gas and vapour.
  7. What is relative humidity? Why is its value more near the sea shore?

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