The melting and boiling points of three substances are given below:
Xenon: melting point −111.8 ∘C-111.8\text{ }^\circ\text{C}−111.8∘C, boiling point −108.1 ∘C-108.1\text{ }^\circ\text{C}−108.1∘C
Ammonia: melting point −77.7 ∘C-77.7\text{ }^\circ\text{C}−77.7∘C, boiling point −33.3 ∘C-33.3\text{ }^\circ\text{C}−33.3∘C
Mercury: melting point −38.8 ∘C-38.8\text{ }^\circ\text{C}−38.8∘C, boiling point 356.7 ∘C356.7\text{ }^\circ\text{C}356.7∘C
Determine the physical state (solid, liquid, or gas) of each substance on the surface of Mars at an ambient temperature of −60 ∘C-60\text{ }^\circ\text{C}−60∘C.
