When Acetaldehyde at a Pressure of 364 MmHg Is Introduced $\rarr$

question 24

Multiple Choice

When acetaldehyde at a pressure of 364 mmHg is introduced into an evacuated 500.mL flask at 518°C, the half-life for the second-order decomposition process, CH₃CHO $\rarr$ CH₄ + CO, is 410.s.What will the total pressure in the flask be after 1.00 hour?

• A)327 mmHg
• B)654 mmHg
• C)37 mmHg
• D)691 mmHg
• E)728 mmHg

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