Physics 5054 · O Level · Melting, boiling and evaporation

Melting, boiling and evaporation — practice question

The melting temperature of a substance is $-17\,^{\circ}\text{C}$ and its boiling temperature is $117\,^{\circ}\text{C}$. At $-10\,^{\circ}\text{C}$ and at $110\,^{\circ}\text{C}$, in what state is the substance?

  • Aat $-10\,^{\circ}\text{C}$: solid; at $110\,^{\circ}\text{C}$: liquid
  • Bat $-10\,^{\circ}\text{C}$: solid; at $110\,^{\circ}\text{C}$: gas
  • Cat $-10\,^{\circ}\text{C}$: liquid; at $110\,^{\circ}\text{C}$: liquid
  • Dat $-10\,^{\circ}\text{C}$: liquid; at $110\,^{\circ}\text{C}$: gas

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