To calibrate a thermometer on the Celsius scale, standard reference temperatures called fixed points are defined. Which of the following is a standard fixed point used for this purpose?
The temperature of a cup of hot coffee.
The temperature of steam above pure boiling water at standard atmospheric pressure.
The temperature inside a domestic refrigerator.
The ambient temperature of a typical classroom.
313 exam-style questions on CIE IGCSE Physics 2.2.3a Melting, boiling, condensation and solidification. Each one has a worked solution and a mark scheme showing where the marks go.