Answer
425.1k+ views
Hint: - A liquid vaporizes when its vapour pressure becomes equal to atmospheric pressure.
- Water has \[0.03\] atm vapour pressure at \[\;{25^0}\]\[C\] where alcohol has around \[0.075 - 0.08\] atm vapour pressure at \[\]\[\;{25^0}\]\[C\].
Complete step by step solution:
Vapour pressure is defined as the pressure exerted by a vapour in thermodynamic equilibrium with its solid or liquid phase at a given temperature in a closed system.
The vapour pressure is an indication of a liquid’s evaporation rate. It relates to the tendency of particles to escape from the liquid(or solid). A substance with a high vapour pressure at normal temperature is often referred to as volatile.
- Water has \[0.03\] atm vapour pressure at \[\;{25^0}\]\[C\] where alcohol has around \[0.075 - 0.08\] atm vapour pressure at \[\]\[\;{25^0}\]\[C\].
So, alcohol is more volatile than water.
The correct option is (D).
Note: - If we increase the temperature, vapour pressure also increases.
- If any liquid has more vapour pressure it means it has lesser boiling points.
- Water has \[0.03\] atm vapour pressure at \[\;{25^0}\]\[C\] where alcohol has around \[0.075 - 0.08\] atm vapour pressure at \[\]\[\;{25^0}\]\[C\].
Complete step by step solution:
Vapour pressure is defined as the pressure exerted by a vapour in thermodynamic equilibrium with its solid or liquid phase at a given temperature in a closed system.
The vapour pressure is an indication of a liquid’s evaporation rate. It relates to the tendency of particles to escape from the liquid(or solid). A substance with a high vapour pressure at normal temperature is often referred to as volatile.
- Water has \[0.03\] atm vapour pressure at \[\;{25^0}\]\[C\] where alcohol has around \[0.075 - 0.08\] atm vapour pressure at \[\]\[\;{25^0}\]\[C\].
So, alcohol is more volatile than water.
The correct option is (D).
Note: - If we increase the temperature, vapour pressure also increases.
- If any liquid has more vapour pressure it means it has lesser boiling points.
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