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Questions  

The heat of combustion of carbon is 394 kJ. The heat evolved in combustion of 6.023 × 1022 atoms of carbon is

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By Expert Faculty of Sri Chaitanya
a
3940 kJ
b
394.0 kJ
c
39.4 kJ
d
0.394 kJ

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detailed solution

Correct option is C

Heat of combustion = 3946.023 × 1023 × 6.023 × 1022 = 39.4 kJ Heat of combustion is for 1 mole = 6.023 × 1023.

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