A metal cylindrical sleeve has inner radius A and an outer radius B. The metal h

Question

A metal cylindrical sleeve has inner radius A and an outer radius B. The metal has a positive thermal expansion coefficient. When the sleeve's temperature increases The outer radius decreases and the inner radius increases The inner radius decreases and the outer radius increases Both the inner and outer radii decrease Both the inner and outer radii increase the sleeve's length decreases For a fixed amount of an ideal gas, if the absolute temperature of the gas is doubled, what happens to the pressure of the gas? The answer cannot be determined without volume information The pressure of the gas becomes double the original pressure The pressure of the gas becomes triple the original pressure The pressure of the gas becomes one half of the original pressure The pressure of the gas becomes four times the original pressure

Explanation / Answer

1) Positive thermal expansion coefficient means that on heating the material will expand.

So the correct answer is option (d).

2) Gay Lussac law states that for a fixed mass and fixed volume the pressure of gas is directly proportional to tempertaure. So we need information about volume which is not provided.

So answer is option (a)

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