An unknown has a chemical formula of C4H10O. When chromic acid was added to the unknown, it turned green. When the Lucas reagent
1 answer:
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Answer : The correct option is, (a)
Solution :
The conversions involved in this process are :
Now we have to calculate the enthalpy change.
where,
= enthalpy change or heat required = ?
m = mass of water = 5.00 g
= specific heat of liquid water =
= specific heat of liquid water =
n = number of moles of water =
= enthalpy change for vaporization = 40.67 KJ/mole = 40670 J/mole
Now put all the given values in the above expression, we get
Therefore, the enthalpy change is,