A liquid begins to boil when?
...A liquid begins to boil when?
its vapour pressure is equal to the vapour pressure of its solid at the given temperature
molecules start escaping from its surface
its vapour pressure equals the atmosphere pressure
its volume is sightly increased
Correct answer is C
The normal boiling point is the temperature at which the vapour pressure is equal to the standard sea-level atmospheric pressure.
A particle that contains 9 protons, 10 neutrons and 10 electrons is ...
Which of the following is an example of an endothermic reaction? ...
What is the chemical symbol for Oxygen? ...
In the diagram above, gas X is ...
The carbon atoms in ethene are? ...
Aromatic and aliphatic hydrocarbons can be distinguished from each other by the? ...
A major source of oxide of nitrogen is from the burning of ...
A solid that absorbs water from he atmosphere and forms an aqueous solution is? ...
Which of the following is used in the manufacture of bleaching powder? ...