Respuesta :

Answer:

a) 32.09 kPa

b) 32.09 kPa

Explanation:

Given data:

rate constant [tex]= 3.56\times 10^{-7} s^{-1}[/tex]

initial pressure is = 32.1 kPa

half life of A is calculated as

[tex]t_{1/2} = \frac{ln 2}{k}[/tex]

[tex]t_{1/2} = \frac{ln 2}{3.56\time 10^{-7}}[/tex]

[tex]t_{1/2} = = 1.956 \times 10^6 s[/tex]

for calculating pressure we have follwing expression

[tex]ln p = ln P_o - kt[/tex]

[tex]P =P_o e^{-kt}[/tex]

a) [tex]P = 32.1 e^{-3.56\times 10^{-7} \times 10} = 32.09 kPa[/tex]

b) [tex]P = 32.1 e^{-3.56\times 10^{-7} \times 10\times 60} = 32.09 kPa[/tex]