Question

If a substance "X" boils at 145' Celsius, then 'X' was heated up to 750' Celsius, after which it was cooled to 500' Celsius at what temperature we can get the 'X' back in its liquid state?


options -
250' C
200' C
100' C
145' C​

Answer 1

Answer:

200 is right answer

Explanation:

hope I help you

Answer 2

Simple Answer : 145°C

Answer:

Boiling Point = 145°C

Heated Up to = 750°C

Cooled down to = 500°C

Liquifaction/ condensing Point = 145°C

So why is Boiling Point equal to Condensing Point ?

It's because a substance is neither Gaseous nor Liquid at its boiling point. You can Check more about it by searching about Latent heat of Vaporisation