There is an aluminium tube containing a silica cylinderThe silica cylinder acts as a thermal tap to control?the flow of liquid down the tubeAt 0 degrees celsius, the cylinder has a diameter of 20mm, there is an exact fit, and no liquid flowsCalculate the size of the gap between cylinder and tube at 100 degrees celcius(linear expansivity if aluminium 0.000026 K ; linear expansivity of silica 0.000008 K) Please show working
