Question 1 How will you show that water vapours are present in air ? Question 2 Name two scales to measure temperature ? Question 3 Convert the temperature 300K to Celsius scale ? Question 4 The boiling point of alcohol is 78°C.What is this temperature on Kelvin scale ? Presence of water vapours in air Water vapours comes into the air from the evaporation of … [Read more...] about Water vapours in air