Which of the following salts will have maximum cooling effect when 0.5 mole of the salt…

Chemistry · JEE Main · NTA Exams — Chemical Thermodynamics

1. KNO₃ (∆H = 35.4 kJ mol^–1)
2. NaCl (∆H = 5.35 kJ mol^–1)
3. HBr (∆H = –83.3 kJ mol^–1)
4. KOH (∆H = –55.6 kJ mol^–1)

Answer

(A) KNO 3 ( ∆ H = 35.4 kJ mol –1 )

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