Question

Which of the following formula is used to determine shelf life as per first order reaction?

• A. $t_{90}$ 0.693/k
• B. $t_{90}$ 0.104/k
• C. $t_{1/2}$ 0.693/k
• D. $t_{1/2}$ 0.105/k

Answer 1

Answer: (B)

$t_{90}$ 0.104/k

Answer 2

The correct answer is option (B) : $t_{90}$ 0.104/k