2. Sample Papers
  3. JEE Main & Advanced
  4. Chemistry
  5. Thermodynamics / रासायनिक उष्मागतिकी

JEE Main & Advanced Chemistry Thermodynamics / रासायनिक उष्मागतिकी Sample Paper Topic Test - Thermo Chemistry (Thermodynamics)

  • question_answer
    Consider the following reaction occuring in an automobile engine : \[2{{C}_{8}}{{H}_{18}}(l)+25\,{{O}_{2}}(g)\to 16\,C{{O}_{2}}(g)+18\,{{H}_{2}}O(g)\] of \[\Delta H,\,\Delta S\] and \[\Delta G\] would be:                             

    A) - + +

    B) - - +

    C) + + -

    D) - + -

    Correct Answer: D

    Solution :

    [d] It is a combustion reaction, \[\Delta H<0;\,\Delta {{n}_{g}}>0,\,\,\Delta s>0\] and therefore \[\Delta G<0\]


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