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AP EAMCET2004ChemistryThermodynamics (C)

Which of the following is an endothermic reaction?

Options

  1. AN ₂(g)+3 H ₂(g)-92 ~kJ 2 NH ₃(g)
  2. BN ₂(g)+ O ₂(g)+180.8 ~kJ 2 NO (g)
  3. CH ₂(g)+ Cl ₂(g) 2 HCl (g)+184.6 ~kJ
  4. DC (graphite) +2 H ₂(g) CH ₂(g)+74.8 ~kJ

Correct answer

B. N ₂(g)+ O ₂(g)+180.8 ~kJ 2 NO (g)

Step-by-step solution

Endothermic reactions are those in which heat energy is absorbed.

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