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NEET Chemistry Thermodynamics / रासायनिक उष्मागतिकी NEET PYQ-Thermodynamics

  • question_answer
    For the reaction,
    \[{{C}_{3}}{{H}_{8}}(g)+5{{O}_{2}}(g)\xrightarrow[{}]{{}}3C{{O}_{2}}(g)+4{{H}_{2}}O\,(l)\]
    at constant temperature, \[\Delta H-\Delta E\]is                                                                   [AIPMT 2003]

    A)        + 3 RT           

    B)  - RT

    C)  + RT              

    D)  - 3 RT

    Correct Answer: D

    Solution :

    For the reaction,
               
                 number of gaseous moles of products
                - number of gaseous moles of reactants
                           
           
    or        
           


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