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9 February, 16:50

The heat capacity of solid sodiu capacity of solid sodium carbonate (Na2CO3) as estimated by Kopp's rule is A. 2.7 kJ/mol°C B. 0.121 KJ/mol°C C. 1.9 kJ/mol°C D. 0.11 KJ/mol°C

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  1. 9 February, 17:14
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    0.11 KJ/mol°c

    Explanation:

    from the standard table we can find the the heat capacity of sodium carbon and oxygen and after finding the heat capacity of these individual we can apply the kopp's rule to find the heat capacity of Na₂CO₃

    From the table heat capacity of sodium=0.026 KJ/mol°c

    From the table heat capacity of carbon = 0.0075 KJ/mol°c

    From the table heat capacity of oxygen=0.017 KJ/mol°c

    by using koop's rule heat capacity of Na₂CO₃

    =2*heat capacity of Na+heat capacity of carbon + 3*heat capacity of oxygen

    =2*0.026+0.0075+3*0.017

    =0.11 KJ/mol°c
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