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Question

Heat liberated by burning 2 g of Carbon in excuses of oxygen is x KJ. The value of ΔHc of Carbon is


  1. x KJ

  2. 6x KJ/Mol

  3. -x KJ/Mol 

  4. -6x KJ/Mol 


Solution

The correct option is D

-6x KJ/Mol 


2 g of C produces = x KJ ; for 12 g of C produce heat = x2 × 12 = 6x KJ. Hence, ΔHc of C = 6x KJ/Mol

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