Chemical Thermodynamics Question 199
Question: The heat of neutralisation of a strong acid and a strong alkali is $ 57.0,kJ,mo{{l}^{-1}} $ . The heat released when $ 0.5,mole $ of $ HNO_3 $ solution is mixed with $ 0.2,mole $ of $ KOH $ is [KCET 1991; AIIMS 2002; AMU (Engg.) 2002]
Options:
A) $ 57.0,kJ $
B) $ 11.4,kJ $
C) $ 28.5,kJ $
D) $ 34.9,kJ $
Show Answer
Answer:
Correct Answer: B
Solution:
0.2 mole will neutralize 0.2 mole of $ HNO_3 $ , heat evolved $ =57\times 0.2=11.4,kJ. $
