Question

why do we get dew on the surfaces of a cold soft drink

Answer 1

When water vapour come in contact with a cold surface, their temperature decreases and thus they condense on the cold surface, to form liquid droplet, as we know that decrease in temperature brings the particles of vapours close and converts it back into liquid. This process is known as condensation......

Answer 2

We get dew on the surface of cold soft drink because when the water vapour in the atmosphere comes in contact with cold surface and hence,condenses and changes its form,i.e,it changes to liquid.