Question

Asked Oct 21, 2019

Iron has a density of 7.850 ✕ 10^{3} kg/m^{3} at 0°C and an average linear expansion coefficient of 1.200 ✕ 10^{−5}(°C^{−1}). A 25.00 kgblock of iron at 0°C is heated to 85.00°C.

(a) What is the density (in kg/m^{3}) of the iron block at 85.00°C? (Round your answer to at least four significant figures.)

kg/m^{3}

(b) What is the mass (in kg) of the iron block at 85.00°C?

kg

Step 1

a)

Calculate the initial volume *V _{o}* of the iron block from the initial density

Step 2

Substitute 25 kg for *m,* 7.85(10^{3}) kg/m^{3} for *ρ _{o}* and solve for

Step 3

Assuming that the block of iron is isometric, the relation between the volumetric thermal expansion coefficient &alp...

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