Question

Mercury freezes at -390C and boils at 3570C.
What is the physical state of mercury at 273K?

pls answer correct

Answer 1

The physical state of mercury at 273K is liquid.

As we know 0℃ = 273K

So, mercury is the only metal which is liquid at 0∘C. It is due to very high ionisation energy which results in weak metallic bonding

Answer 2

Explanation:

Given,

Melting point of mercury = -39℃

Boiling point of mercury = 357℃

Now, if the melting point is -39℃, then mercury will melt in our room temperature as it is 30℃ - 35℃.

To make it simple, Mercury will exist as liquid as the room temperature is about 33℃ and this temperature could easily melt it as it has just a melting point of -39℃.

This means that mercury melts even at temperature of -38℃.

So, in our room temperature, it is found as liquid.

Another situation is that it's boiling point.

Mercury's boiling point is 357℃. Hence, it requires a temperature of 357℃ to get boiled. But our room temperature (35℃) doesn't make mercury to get boiled.

Hence, Mercury exist as liquid at room temperature.

Note :- Mercury is the only metal to exist as liquid at room temperature.