Which of the following are spontaneous?
(a) dissolution of sugar in hot coffee
(b) separation of Ar and Kr from their mixture
(c) spreading of fragrance when a bottle of perfume is opened
(d) flow of heat from cold object to hot object
(e) heat transfer from ice to room at 25°C
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the answer is the option a
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Here the dissolution of sugar in hot coffee is the of the following are spontaneous.
Then it has decomposition of solid sodium and also gaseous clod with no trouble of it.
It is simple to dis solution with the various liquid items with no trouble of it.
Hope it is become right answer for the student to collect with no trouble of it.
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