Of the reactions involved in the photodecomposition of ozone ...

[Kikoku]

Of the reactions involved in the photodecomposition of ozone (shown below), which are exothermic?
 
  1. O2 (g) + h  O (g) + O (g)
  2. O (g) + O2 (g) + M (g)  O3 (g) + M (g)
  3. O3 (g) + h  O2 (g) + O (g)
  4. O (g) + O (g) + M (g)  O2 (g) + M (g)
  A) 2 and 4
  B) 1 and 3
  C) 1, 2, and 4
  D) 2 only
  E) all of them

Question 2

Of the choices below, which would be the best for the lining of a tank intended for use in storage of hydrochloric acid?
 
  A) copper
  B) zinc
  C) nickel
  D) iron
  E) tin

[k2629]

Answer to Question 1

A

Answer to Question 2

A

[Kikoku]

TYSM

[mjenn52]

Gracias!