The melting points of two liquids, Liquid X and Liquid Y, are shown in the table:
| Liquid | Melting point (∘C^\circ\text{C}∘C) |
|---|---|
| Liquid X | -130 |
| Liquid Y | -95 |
Which of these two liquids is/are suitable to use in a liquid-in-glass thermometer to measure temperatures of −80∘C-80^\circ\text{C}−80∘C and −120∘C-120^\circ\text{C}−120∘C?
Liquid X only
Liquid Y only
both Liquid X and Liquid Y
neither Liquid X nor Liquid Y
528 exam-style questions on CIE IGCSE Physics 2.2 Thermal properties and temperature, covering 2.2.1 Thermal expansion of solids, liquids and gases, 2.2.2a Internal energy and temperature, 2.2.2b Specific heat capacity, 2.2.3a Melting, boiling, condensation and solidification, 2.2.3b Evaporation, and 2.2.3c Cooling by evaporation. Each one has a worked solution and a mark scheme showing where the marks go.