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The First-Order Decomposition of Phosphene to Phosphorus and Hydrogen 4PH₃(g) $\rarr$

Question 67

Multiple Choice

The first-order decomposition of phosphene to phosphorus and hydrogen 4PH₃(g) $\rarr$ P₄(g) + 6H₂(g) has a half-life of 35.0 s at 680°C. Starting with 520 mmHg of pure phosphene in an 8.00-L flask at 680°C, how long will it take for the total pressure in the flask to rise to 1.000 atm?

A) 628 s
B) 33.4 s
C) 51.2 s
D) 111 s
E) 48.3 s

The First-Order Decomposition of Phosphene to Phosphorus and Hydrogen 4PH3(g) →\rarr→

Multiple Choice

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The First-Order Decomposition of Phosphene to Phosphorus and Hydrogen 4PH₃(g) $\rarr$

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