The density of lead is 1.13 ✕ 104 kg/m3 at 20.0°c. find its density (in kg/m3) at 143°c. (use α = 29 ✕ 10−6 (°c)−1 for the coefficient of linear expansion. give your answer to at least four significant figures.)

Explanation:

The expression for the volume expansion is:-

Where,

are the volume values

is the coefficient of linear expansion =

Also,

Density is defined as:-

or,

Applying in the above equation, we get that:-

Or,

So, From the question,

Thus,

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