Decomposition of A follows first order kinetics by the following equation. 4 A ( g ) longrightarrow B ( g )+2 C ( g ) If initially, total pressure was 800 mm of Hg and after 10 minutes it is found to be 650 mm of Hg. What is half-life (in min.) of A ? (Assume only A is present initially)

Question

Decomposition of A follows first order kinetics by the following equation. 4 A ( g ) longrightarrow B ( g )+2 C ( g ) If initially, total pressure was 800 mm of Hg and after 10 minutes it is found to be 650 mm of Hg. What is half-life (in min.) of A ? (Assume only A is present initially) (A)  (B)  (C)  (D)

Tardigrade Admin · Accepted Answer

<img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/c5a6b3922835930a38452a935599e896-.png" /> ∴ p=150 Pressure of A=200, so ∴ 2 × t1 / 2=10 minutes t1 / 2=5 minutes

Q. Decomposition of A follows first order kinetics by the following equation.
$4 A (g) ⟶ B (g) + 2 C (g)$
If initially, total pressure was $800 mm$ of $H g$ and after $10$ minutes it is found to be $650 mm$ of $H g$ . What is half-life (in $min$ .) of $A$ ? (Assume only $A$ is present initially)

$∴ p = 150$
Pressure of $A = 200$ , so
$∴ 2 \times t_{1/2} = 10$ minutes
$t_{1/2} = 5$ minutes

Q. Decomposition of A follows first order kinetics by the following equation. 4A(g)⟶B(g)+2C(g) If initially, total pressure was 800mm of Hg and after 10 minutes it is found to be 650mm of Hg. What is half-life (in min.) of A ? (Assume only A is present initially)

∴p=150 Pressure of A=200, so ∴2×t1/2​=10 minutes t1/2​=5 minutes

Q. Decomposition of A follows first order kinetics by the following equation.
$4 A (g) ⟶ B (g) + 2 C (g)$
If initially, total pressure was $800 mm$ of $H g$ and after $10$ minutes it is found to be $650 mm$ of $H g$ . What is half-life (in $min$ .) of $A$ ? (Assume only $A$ is present initially)

$∴ p = 150$
Pressure of $A = 200$ , so
$∴ 2 \times t_{1/2} = 10$ minutes
$t_{1/2} = 5$ minutes