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7 The triple points of neon and carbon dioxide are 24.57 K and 216.55 K respectively. Express
these temperatures on the Celsius and Fahrenheit scales.
8 A hole is drilled in a copper sheet. The diameter of the hole is 4.24 cm at 27.0 °C. What is the
change in the diameter of the hole when the sheet is heated to 227 °C ? Coefficient of linear
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-5
expansion of copper = 1.70 x 10 K .
9 (a)What is regelation?
(b)Give one practical application of regelation.
10 (a)Define Latent heat of fusion.
(b)Define Latent heat of vaporization.
