2. Questions Bank
  3. JEE Main & Advanced
  4. Chemistry
  5. Thermodynamics / रासायनिक उष्मागतिकी

JEE Main & Advanced Chemistry Thermodynamics / रासायनिक उष्मागतिकी Question Bank 2nd and 3rd law of thermodynamics and Entropy

  • question_answer
    Which of the following pairs of a chemical reaction is certain to result in spontaneous reaction ? [CBSE PMT 2005]

    A)                 Exothermic and decreasing disorder

    B)                 Endothermic and increasing disorder

    C)                 Exothermic and increasing disorder

    D)                 Endothermic and decreasing disorder

    Correct Answer: C

    Solution :

            \[\Delta G=\Delta H-T\Delta S\]             for spontaneous process \[\Delta G\]should be negative in option (3) \[\Delta H=-ve\ \text{and}\ \Delta S=+ve\] than                 \[\Delta G=(-ve)-T(+ve)\] \[=-\,ve\]


You need to login to perform this action.
You will be redirected in 3 sec spinner