A1.0-gram sample of solid iodine is placed in a tube and the tube is sealed after all of the air is removed. the tube and the solid iodine together weigh 27.0 grams. the tube is then heated until all of the iodine evaporates and the tube is filled with iodine gas. what will the weight of the sealed tube now filled with iodine gas?

weight of sealed tube that is filled with iodine gas is 27 gm

Explanation:

As tube is closed therefore mole of gas is enclosed in a tube, thus it will only converted into gas ( Iodine Gas). In the gas form it will going to exert pressure on the wall of a tube. From conservation of mass principle weight of tube remain same, there will be no change in the weight of gas. therefore weight of sealed tube that is filled with iodine gas is 27 gm

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