Thermodynamics Question 101

Question: When 50cm3 of 0.2NH2SO4 is mixed with 50cm3 of 1NKOH , the heat liberated is

[KCET 2004]

Options:

A) 11.46 kJ

B) 57.3 kJ

C) 573 kJ

D) 573 J

Show Answer

Answer:

Correct Answer: D

Solution:

For complete neutralization of strong acid and strong base energy released is 57.32KJ/mol

No. of mole of H2SO4=0.2×501000=102

No. of mole of KOH=11000×50=5×102 So =57.32×102=0.5732KJ

=573.2Joule .



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