Question

What is the effect of temperature and pressure on the yields of products?
a. `N_(2)(s)+3H_(2)(g) hArr 2NH_(3)+x cal`
b. `N_(2)(g)+O_(2)(g) hArr 2NO(g)-y cal`
c. `2SO_(2)(g)+O_(2)(g) hArr 2SO_(3)(g)+46.9 kcal`
d. `PCl_(5)(g) hArr PCl_(3)(g)+Cl_(2)(g)-15.0 kcal`
A. (ii),(iii)
B. (ii),(iii),(iv)
C. (i),(ii)(iii)
D. (iv)

Answer 1

Correct Answer - A
Heterogenous catlysis involved both in (ii) and (iii) because metal catalysts are used.