Question

75% of zero order reaction complete in 4 hour 87.5 percent of the same reaction complete in

Answer 1

Answer:

87.5 percent of the same reaction complete in 4.64 hours .

Step-by-step explanation:

Formula

$Percentage = \frac{Part\ value\times 100}{Total\ value}$

As given

75% of zero order reaction complete in 4 hour .

Part value = 4 hours

Percentage = 75%

Put all the values in the formula

$75= \frac{4\times 100}{Total\ value}$

$Total\ value= \frac{400}{75}$

Total value = 5.3 hours

Thus total time take by zero order reaction for complete is 5.3 hours .

Now

Percentage = 87.5 %

Total value = 5.3 hours

Put in the formula

$87.5= \frac{Part\ value\times 100}{5.3}$

$Part\ value= \frac{87.5\times 5.3}{100}$

$Part\ value= \frac{463.75}{100}$

Part value =  4.64 hours (Approx)

Therefore 87.5 percent of the same reaction complete in 4.64 hours .