Which of the following processes are Endothermic?

a. C₂H₂OH(1)→ C₂H₂OH(g)
b. Br₂(1)→→ Br₂(s)
c. CH2(g) +802(g) → 5CO2(g) + 6H₂O(1)
d. NH3(g) →→→ NH₂(1)
e. NaCl(s)→→→ NaCl(1)

1 answer

b. Br₂(1)→→ Br₂(s)
d. NH3(g) →→→ NH₂(1)