The value of the coefficient of volume expansion of glycerine is \(5\times10^{-4}~\text{K}^{-1}.\) The fractional change in the density of glycerine for a rise of \(40^\circ \text{C}\) in its temperature is:

1. \(0.015\) 2. \(0.020\)
3. \(0.025\) 4. \(0.010\)
Subtopic:  Thermal Expansion |
 84%
Level 1: 80%+
NEET - 2015
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The density of water at \(20^\circ \text{C}\) is \(998~\text{kg/m}^3\) and at \(40^\circ \text{C}\) is \(992~\text{kg/m}^3.\) The coefficient of volume expansion of water is: 
1. \(3 \times 10^{-4} / ^\circ\text C\)
2. \(2 \times 10^{-4} / ^\circ\text C\)
3. \(6 \times 10^{-4} / ^\circ\text C\)
4. \(10^{-4} / ^\circ\text C\)
Subtopic:  Thermal Expansion |
 73%
Level 2: 60%+
NEET - 2013
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