Once the aluminum ring in Problem is slipped over the bar, the ring and bar are allowed to...

Once the aluminum ring in Problem is slipped over the bar, the ring and bar are allowed to equilibrate at a temperature of 22 °C- The ring is now stuck on the bar. (a) If the temperatures of both the ring and the bar are changed together, should the system be heated or cooled to remove the ring? (b) Find the temperature at which the ring can be removed.

Problem

It is desired to slip an aluminum ring over a steel bar. At 10.00 °C the inside diameter of the ring is 4.000 cm and the diameter of the rod is 4.040 cm. (a) Tn order for the ring to slip over the bar, should the ring be heated or. cooied? Explain, (b) Find the temperature of the ring at which it fits over the bar. The bar remains at 10.0 °C.

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