nicoleskertich
26.01.2021 •
Chemistry
What would you observe when an aqueous solution of bromine is added to an aqueous solution of potassium iodide? Explain these observations. 4 marks
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Ответ:
Explanation:
Heat lost by metal = mass x specific heat x fall in temperature
= 74 x S x ( 94 - 32 )
= 4588 S
heat gained by water = mass x specific heat x rise in temperature
= 120 x 1 x ( 32 - 26.5 ) ( specific heat of water is 1 cals / gm )
= 660
Heat lost = heat gained
4588S = 660
S = .14 cal /gm .
Specific heat of metal = .14 cal / gm