1.

the mutual heat ofneutralusation of 40 g NaOH and 60 g CH_(3) COOH will be

Answer»

57.1 kJ
less than 57.1 kJ
more than 57.1 kJ
13.7 kJ

Solution :`40 g NaOH = 4/40` = 1 mol NaOH
` 60 g CH_(3)COOH=60/60=1 mol CH_(3) COOH`
SINCE , acetic acid a weak acid , some of the HEAT is utilised to ionsie it . Os enthalpy of neutralisation of 1 mole of NaOH by `1 mole CH_(3)` COOH is less than 57.1 KJ.
Enthalpy of neutralisation of a strang acid by a STRONG base is always 57.1 KJ.


Discussion

No Comment Found

Related InterviewSolutions