Question

what is volume expansion ? State its coefficient​

Answer 1

Answer:

The volumetric thermal expansion coefficient is the most basic thermal expansion coefficient. illustrates that, in general, substances expand or contract when their temperature changes, with expansion or contraction occurring in all directions.

Explanation:

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Answer 2

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This means that the volume of a material changes by some fixed fractional amount. For example, a steel block with a volume of 1 cubic meter might expand to 1.002 cubic meters when the temperature is raised by 50 K. This is an expansion of 0.2%.

An object of volume V expands to V+ΔV when temperature is increased by ΔT, then volume expansion coefficient αv is given by. αv = (ΔV/V) / ΔT

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