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Combustion of glucose takes place according to the equation C 6 H 12 O 6 + 6 O 2 → 6 CO 2 + 6 H 2 O; ΔH = − 72 kcal/mol . How much energy will be released by the combustion of 1 .6 g of glucose (Molecular mass of glucose = 180 g/mol )?

Options

  1. A0.064 kcal
  2. B0.64 kcal
  3. C6.4 kcal
  4. D64 kcal

Correct answer

B. 0.64 kcal

Step-by-step solution

Combustion of glucose takes place according to the equation C 6 H 12 O 6   +   6O 2   →   6CO 2   +   6H 2 O;   ΔH   =   -72   kcal ΔH per 1 .6 g = 72×1 .6 180 = 0 .64 kcal

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