“Substances can exist in three states – gas, liquid and solid. Water exists in all three states: gas (steam or water vapour), liquid (ordinary water) and solid (ice}. Properties of gases, liquids and solids are different.”

—  C. N. R. Rao

Source: Understanding Chemistry (1999), p. 56

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C. N. R. Rao photo
C. N. R. Rao40
Indian chemist 1934

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