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     EduGorilla 
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    Given:

    C(grahite) + O2(g)  CO2(g) ;  kJ mol–1
    H2(g) + (g)  H2O(1); = –285.8 kJ mol–1
    CO2(g) + 2H2O(1)  CH4(g) + 2O2 (g); Ho = + 890.3 kJ mol–1
    Based on the above thermochemical equaitons, the value of  at 298 K for the reaction
    C
    (grahite) + 2H2(g)  CH4(g) will be:

    Options :-

    1. +74.8 kJ mol–1
    2. +144.0 kJ mol–1
    3. –74.8 kJ mol–1
    4. –144.0 kJ mol–1
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Reply To: Given:C(grahite) + O2(g)  CO2(g) ;  kJ mol–1H2(g) + (g)  H2O(1); = &n….
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