Author Question: Use the following data to determine the rate law for the reaction shown below. 2NO + H2 N2O + ... (Read 5 times)

JimmyJoe · **on:** Nov 5, 2023

Question 1

The thermal decomposition of acetaldehyde, CH₃CHO → CH₄ + CO, is a second-order reaction. The following data were obtained at 518°C.

time, s

Pressure CH₃CHO, mmHg

	0	364
	42	330
	105	290
	720	132

Based on the data given, what is the half-life for the disappearance of acetaldehyde?

◦ 1.5 × 10⁵ s
◦ 410 s
◦ 5.4 × 10⁷ s
◦ 520 s
◦ 305 s

Question 2

Use the following data to determine the rate law for the reaction shown below.
2NO + H₂→ N₂O + H₂O

Expt. #	[NO]₀	[H₂]₀	Initial rate
1	0.021	0.065	1.46 M/min
2	0.021	0.260	1.46 M/min
3	0.042	0.065	5.84 M/min

◦ rate = k[NO]
◦ rate = k[NO]²

◦ rate = k[NO][H₂]
◦ rate = k[NO]²[H₂]
◦ rate = k[NO]²[H₂]²

furthoh · **Reply #1 on:** Nov 5, 2023

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