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Hydrazine used in rocket fuels can be obtained by the reaction of ammonia and hydrogen peroxide according to the following equation 2 NH ₃( ~g )+ H ₂ O ₂( l ) N ₂ H ₄( l )+2 H ₂ O ( l ) ( H ^0 . reaction .=-241 ~kJ / mol ) If H ^0 (formation) of NH ₃, H ₂ O ₂ and H ₂ O are -46.1,-187.8 and -285.8 ~kJ / mol respectively, H ^0 for the decomposition of hydrazine into N ₂ and H ₂ is

Options

  1. A50.6 ~kJ / mol
  2. B241 ~kJ / mol
  3. C-50.6 ~kJ / mol
  4. D120.5 ~kJ / mol

Correct answer

C. -50.6 ~kJ / mol

Step-by-step solution

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