Question

A closed bottle containing water at room temperature is taken to the moon and then the lid is opened. The water will ________.

• A. boil
• B. freeze
• C. decompose into hydrogen and oxygen
• D. not change at all

Answer 1

Answer: (B)

freeze

Melting point of ice decreases as atmospheric pressure decreases.

As atmospheric pressure is very less on the moon compared to the Earth, the melting point increases, so water can freeze at normal temperature also.

So at lower pressure on the moon, water freezes easily.