WAEC - Physics (2004 - No. 20)

When compared with water, mercury is preferred as a thermometric liquid because

has a higher density

has lower specific heat capacity

exhibits anomalous thermal expansion

contains molecules which have very strong adhesive forces

Specific Heat Capacity of mercury and water are 0.14 Jg\(^{-1}\)C\(^{-1}\) and 4.186Jg\(^{-1}\)C\(^{-1}\) respectively.