Equal volumes of steel, oil and hydrogen are heated from 20 °C to 60 °C.
Their volumes increase by thermal expansion.
State which of these substances has the greatest increase in volume.
Fig. 7.1 shows a liquid-in-glass thermometer.
(i) State the temperature reading on the thermometer.
[1]
(ii) State the temperature range of the thermometer.
[1]
(iii) State the values of the fixed points of the Celsius scale of temperature.
[1]
The liquid-in-glass thermometer uses the thermal expansion of mercury.
State and explain one other application or consequence of thermal expansion in science or engineering.
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