Question

please help me
a vapour changes back into the liquid state

Answer 1

on condensation we can get back vapour into liquid.so many process based on this process which you will be learn in your higher study.

Answer 2

Heya mate ☺✌✌✌.....

A vapour changes back into the liquid state the process is called Evaporation.... As we know the process Evaporation creates water vapours and when these water vapours cool down they come in the form of water droplets .......

hope it helps u!!!!!^_^✌✌✌