the reaction of sodium with oxygen. a) endothermic and spontaneous. b) endothermic and non spontaneous. c) exothermic and non spontaneous. d) exothermic and spontaneous
Answers
Explanation:
Sodium is a very reactive metal, it tends to react with oxygen to form sodium oxide but this is an unstable compound and soon reacts with hydrogen to form sodium hydroxide. Sodium is the metal reacts vigorously with oxygen and water. 4 Na + O2 → 2 Na2O.
Answer:
The reaction of sodium with oxygen is exothermic and spontaneous.
Explanation:
Sodium, which is a highly reactive metal, reacts spontaneously with oxygen at room temperature to form an unstable compound of sodium oxide. This reaction proceeds with an external input of energy.
The reaction is given below.
4Na + O₂ → 2Na₂O
The reaction is highly exothermic (heat is given out during the reaction). For an exothermic reaction to be spontaneous, it should take place at a low temperature.