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What is the ratio of the energy yield on...

What is the ratio of the energy yield on combustion of hydrogen atoms to steam to the yield on combustion of an equal mass of hydrogen molecules to steam ?
Given , `H_(2) (g) + (1)/(2) O_(2) (g) to H_(2) O (g) , Delta H= -242 kJ`
B.E. (H-H) = 436 kJ

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`2.80 : 1`
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What is the ratop of the enthalpy yield on combustion of hydrogen of hydrogen atoms to steam to the yield on combustion of an equal mass of hydrogen molecules to steam ? Given: H_(2) (g) + (1)/(2) O_(2) (g) rarr H_(2) O (g) , Delta H = -242 kJ B.E. (H - H) = 436 kJ

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