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2.2 Thermal properties and temperature

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Question 229

The table gives the melting points and boiling points of acetic acid and ethanol:

SubstanceMelting pointBoiling pointacetic acid17∘C118∘Cethanol−114∘C78∘C \begin{array}{|c|c|c|}\hline \text{Substance} & \text{Melting point} & \text{Boiling point} \\ \hline \text{acetic acid} & 17^\circ\text{C} & 118^\circ\text{C} \\ \hline \text{ethanol} & -114^\circ\text{C} & 78^\circ\text{C} \\ \hline \end{array} Substanceacetic acidethanol​Melting point17∘C−114∘C​Boiling point118∘C78∘C​​

At which temperature will both acetic acid and ethanol be liquid?

A

−20∘C-20^\circ\text{C}−20∘C

B

10∘C10^\circ\text{C}10∘C

C

50∘C50^\circ\text{C}50∘C

D

90∘C90^\circ\text{C}90∘C

Markscheme

2.2 Thermal properties and temperature Questions

  1. IGCSE
  2. /Physics
  3. /2.2 Thermal properties and temperature

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.

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