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Heat produced by burning 1 mol carbon wi...

Heat produced by burning 1 mol carbon with `O_(2)` to `CO_(2)` is 80 KJ and by maximum amount of heat produced on burning 30 g carbon with 48G `O_(2)`:

A

40KJ

B

65KJ

C

160KJ

D

140KJ

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The correct Answer is:
d
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The commercial production of water gas utilizes the reaction under standard conditions :C+H_(2)O_((g)) rarr H_(2)+CO . The heat required for this endothermic reaction may be supplied by adding a limited amount of air and burning some carbon to CO_(20 . How many gram of carbon must be burnt to CO_(2) to provide enough heat for the water gas conversion of 100g carbon ? Neglect all heat losses to the environment. Also DeltaH_(f)^(@) of CO,H_(2)O_((g)) and CO_(2) are -110.53, -241.81 and -393.51kJ //mol respectively.

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