Question

The pressure of a 1 : 4 mixture of dihydrogen and dioxygen enclosed in a vessel is one atmosphere. What would be the partial pressure to dioxygen?

• A. $0.8 \times 10 ^ { 5 } \mathrm {~atm}$
• B.
• C. $8 \times 10 ^ { 4 } \mathrm { Nm } ^ { - 2 }$
• D.

Answer 1

Answer: (C)

$8 \times 10 ^ { 4 } \mathrm { Nm } ^ { - 2 }$

Answer 2

: $\mathrm { Po } _ { 2 } = \mathrm { Xo } _ { 2 } \times \mathrm { P } _ { \text {total } }$

Given :

$\mathrm { Po } _ { 2 } = \frac { 4 } { 5 } \times 1 = 0.8 \mathrm {~atm}$

$= 0.8 \times 10 ^ { 5 } \mathrm { Nm } ^ { - 2 } = 8 \times 10 ^ { 4 } \mathrm { Nm } ^ { - 2 }$