Question

A bottle of water is opened on the surface of the moon. What will happen?

Answer 1

The Moon is Earth's only natural satellite. At about one-quarter the diameter of Earth (comparable to the width of Australia), it is the largest natural satellite in the Solar System relative to the size of its planet, the fifth largest satellite in the Solar System overall, and is larger than any dwarf planet. Orbiting Earth at an average distance of 384,400 km (238,900 mi),[16] or about 30 times Earth's diameter, its gravitational influence slightly lengthens Earth's day and is the main driver of Earth's tides.

Complete step-by-step solution:
The Moon's atmosphere is a very thin layer of gases encircling the Moon. The Moon is thought to be surrounded by vacuum for most practical purposes. In comparison to the gaseous envelopes that surround Earth and most other planets in the Solar System, the existence of atomic and molecular particles in its vicinity, referred to as "lunar atmosphere" for scientific purposes, is minimal. Otherwise, the Moon is thought to lack an atmosphere since it cannot absorb detectable amounts of radiation, does not appear to be stratified or self-circulating, and requires continual replenishment owing to the rapid loss of its gases into space.
The water will either evaporate or freeze depending on the location of the sun. When the sun is down, the temperature of the moon can drop to$- {173^o}{\text{ }}C$, which means that if we pour some water on it, it will immediately freeze because the freezing temperature of water is${0^o}{\text{ }}C$, and when the sun is up, the surface temperature can rise to${127^o}{\text{ }}C$, which easily converts water into vapour form because the boiling temperature of water is ${100^o}{\text{ }}C$

Note: Based on studies of Moon magma samples retrieved by the Apollo missions, NASA scientists at the Marshall Space Flight Center and the Lunar and Planetary Institute in Houston announced in 2017 that the Moon once had a relatively thick atmosphere for a period of 70 million years between 3 and 4 billion years ago. This atmosphere, which was made up of gases expelled by lunar volcanic eruptions, was twice as thick as the atmosphere on Mars today. Although no evidence of life has been discovered, it has been speculated that this ancient environment may have supported life. Solar winds gradually took away the old lunar atmosphere, which dispersed into space.