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The specific heats of iodine vapour and ...

The specific heats of iodine vapour and solid are `0.031` and `0.055 cal//g` respectively. If heat of sublimation of iodinde is `24cal//g` at `200^(@)C`, what is its value at `250^(@)C` ?

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The correct Answer is:
`22.8 cal//g`
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