The variation of vapour pressure of different liquids with temperature is shown in fugure
(i) Calculate graphically boiling points of liquids A and B.
(ii) If we take liquid C in a closed vessel and heat it continuously. At what temperature will it boil?
(iii) At high altitude, atmospheric pressure is low (say 60 mm Hg). At what temperature liquid D boils?
(iv) Pressure coojer is used for cooking food at hill station. Explain in terms of vapour pressure why is it so?
The variation of vapour pressure of different liquids with temperature is shown in fugure
(i) Calculate graphically boiling points of liquids A and B.
(ii) If we take liquid C in a closed vessel and heat it continuously. At what temperature will it boil?
(iii) At high altitude, atmospheric pressure is low (say 60 mm Hg). At what temperature liquid D boils?
(iv) Pressure coojer is used for cooking food at hill station. Explain in terms of vapour pressure why is it so?
(i) The boiling point of A = approximately 315 K,
B= approximately 345 K,
(ii) In a closed vessel, liquid C will not boil because the pressure inside keeps on increasing.
(iii) The temperature corresponding to 60 mm =313 K.
(iv) A liquid boils when vapour pressure becomes equal to the atmospheric pressure. However, at high altitudes i.e., on, hills, water boils at low temperature due to low atmospheric pressure. But when the pressure cooker is used, the vapour pressure of water is increased due to which water boils at even, the lower temperature within a short period of time.
(i) The boiling point of A = approximately 315 K,
B= approximately 345 K,
(ii) In a closed vessel, liquid C will not boil because the pressure inside keeps on increasing.
(iii) The temperature corresponding to 60 mm =313 K.
(iv) A liquid boils when vapour pressure becomes equal to the atmospheric pressure. However, at high altitudes i.e., on, hills, water boils at low temperature due to low atmospheric pressure. But when the pressure cooker is used, the vapour pressure of water is increased due to which water boils at even, the lower temperature within a short period of time.
