Sodium chloride and sand are mixed in water. The resultant mixture is heated for a long time. What will we find at the end?
Sodium chloride and sand are mixed in water. The resultant mixture is heated for a long time. What will we find at the end?
The correct option is A Sodium chloride and sand
Sodium chloride is table salt. When we add sodium chloride and sand to water, we we see that the sodium chloride completely dissolves in water and the sand just remains floating around and settling.
If we heat this mixture for a while, we will notice that the water starts becoming water vapour. Eventually, all the water will become vapour and we will be left with the sand and salt. But why don't the sand and salt vapourize like water?
That's because the temperature required to convert water to vapour is far lower than that required to convert sand or salt to vapour. Or we can also say that the boiling temperature for water is much lower than that of salt or sand.
Sodium chloride and sand
Sodium chloride is table salt. When we add sodium chloride and sand to water, we we see that the sodium chloride completely dissolves in water and the sand just remains floating around and settling.
If we heat this mixture for a while, we will notice that the water starts becoming water vapour. Eventually, all the water will become vapour and we will be left with the sand and salt. But why don't the sand and salt vapourize like water?
That's because the temperature required to convert water to vapour is far lower than that required to convert sand or salt to vapour. Or we can also say that the boiling temperature for water is much lower than that of salt or sand.
