Table 1 shows the melting and boiling points of argon and nitrogen.
| Substance | Melting point in ∘C^\circ\text{C}∘C | Boiling point in ∘C^\circ\text{C}∘C |
|---|---|---|
| Argon | -189 | -186 |
| Nitrogen | -210 | -196 |
An industrial cryogenic chamber containing argon and nitrogen is maintained at a constant temperature of 83 K.
Using the information in Table 1, what are the physical states of these two substances at 83 K? (Use the relationship: T(K)=T(∘C)+273T(\text{K}) = T(^\circ\text{C}) + 273T(K)=T(∘C)+273)
argon: solid, nitrogen: gas
argon: liquid, nitrogen: gas
argon: solid, nitrogen: liquid
argon: gas, nitrogen: gas
84 exam-style questions on Edexcel GCSE Chemistry 3.1 States of matter, covering 3.1.1 The three states of matter and changes of state. Each one has a worked solution and a mark scheme showing where the marks go.