NEET2002ChemistryThermodynamics (C)Actual
The heat of neutralization of a strong base and a strong acid is 57 ~kJ . The heat released when 0.5 mole of HNO ₃ solution is added to 0.20 moles of NaOH solution, is
Options
- A11.4 ~kJ
- B34.7 ~kJ
- C23.5 ~kJ
- D58.8 ~kJ .
Correct answer
A. 11.4 ~kJ
Step-by-step solution
Heat of neutralization ( H)=57 ~kJ , mole of HNO ₃=0.5 mole and mole of NaOH =0.2 mole. When HNO ₃ solution is added to NaOH solution, then 0.2 mole of HNO ₃ solution will combine with 0.2 mole of OH ⁻ ions of NaOH solution. Heat released = H 0.2=57 0.2=11.4 ~kJ .