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MMLU-Pro / 4193 / A common rocket propellant is a mixture of one part liquid hydrazine (N_2H_4) as…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

A common rocket propellant is a mixture of one part liquid hydrazine (N_2H_4) as fuel and two parts liquid hydrogen peroxide (H_2O_2) as oxidizer. These reactants are hypergolic, that is, they ignite on contact. The reaction proceeds according to the equation N_2H_4(l) + 2H_2O_2 (l) \rightarrow N_2(g) + 4H_2O(g). If reactants are mixed at 25°C, what is the heat of reaction?

category

chemistry

options

  1. - 120 Kcal/mole
  2. 12 Kcal/mole
  3. - 57.8 Kcal/mole
  4. - 151 Kcal/mole
  5. 33.5 Kcal/mole
  6. - 75 Kcal/mole
  7. - 46 Kcal/mole
  8. 97.3 Kcal/mole
  9. 62.1 Kcal/mole
  10. - 200 Kcal/mole

src

stemez-Chemistry

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Source and history

upstream_id / Original problem ID
4193
task_id
38b20f31-d911-5439-947d-8ad13b39e91b
task_key
default--test--4193
task_revision_id
1
config / split
default / test

Official source

initial import