I have tried this question 6 times (getting the same answer more than once) and am still not getting the correct answer. I think I need some help understanding where I'm going wrong. The question: A container is filled to the brim with 1.35 L of mercury at 20°C. When the temperature of container and mercury is raised to 60°C, 7.4 mL of mercury spill over the brim of the container. Determine the linear expansion coefficient of the container. I have tried using the equation, (delta V/Vo) = 3 (alpha) (delta T), knowing that Beta=3(alpha) for the relationship between linear and volumetric expansion coefficients. I also know that the volume of mercury in the container doesn't decrease that much (1.35L --> 1.3426L) and that the temperature change is 40K (since degrees celsius and kelvin are the same scale). I am very frustrated with this problem and hope someone can help me see my error. Thanks.