Final answer:
The determination of cubic expansivity refers to the coefficient of volume expansion (β), which is approximately three times the coefficient of linear expansion (α). Without specific values for α, it's not possible to provide the exact cubic expansivity (β) from the given options.
Step-by-step explanation:
The student is asking about the determination of cubic expansivity, which refers to the coefficient of volume expansion (β) of materials. This coefficient measures how much a material's volume changes with temperature. For small temperature changes, it's often approximated that β is roughly 3 times the coefficient of linear expansion (α). Therefore, if we are given α, we can estimate β as being approximately three times this value.
From the information provided in the question, we do not have actual values for α for a specific material. However, using the formula β ≈ 3α, we can determine that the determination of cubic expansivity values would be almost exactly three times the values of the coefficient of linear expansion if those were listed.