Help on these two plz A student obtained the following data for the decomposition of hydrogen iodide on a gold surface at 150 °C.HI(g) →→→ H₂(g) + ½ I₂(g)[HI], Mseconds0.38900.1955209.75x10-27814.88x10-2912(1) What is the half-life for the reaction starting at t=0 s?What is the half-life for the reaction starting at t=520 s?Does the half-life increase, decrease or remain constant as the reaction proceeds? [(2) Is the reaction zero, first, or second order?(3) Based on these data, what is the rate constant for the reaction?vSSquestion.Ms 1 A student obtained the following data for the gas phase decomposition of nitrosyl chloride at 400 K.NOCI(g) NO(g) + ½ Cl₂(g)[NOCI], Mseconds0.10705.35x10-21.81x1042.68x10-25.42x1041.34×10-21.26x105S(1) What is the half-life for the reaction starting at t=0 s?What is the half-life for the reaction starting at t=1.81×104 s?Does the half-life increase, decrease or remain constant as the reaction proceeds?(2) Is the reaction zero, first, or second order?(3) Based on these data, what is the rate constant for the reaction?SM-15-1

Answered: Image /qna-images/answer/427f330b-bf09-45c7-a2ce-85714c172348.jpg

A student obtained the following data for the decomposition of hydrogen iodide on a gold surface at 150 °C. HI(g) ½ H₂(g) + ½ I₂(g) [HI], M seconds 0.389 0 0.195 520 9.75x10-2 781 4.88x10-2 912 (1) What is the half-life for the reaction starting at t=0 s? What is the half-life for the reaction starting at t=520 s? Does the half-life increase, decrease or remain constant as the reaction proceeds? [ (2) Is the reaction zero, first, or second order? (3) Based on these data, what is the rate constant for the reaction? v S S Ms1

A student obtained the following data for the decomposition of hydrogen iodide on a gold surface at 150 °C. HI(g) ½ H₂(g) + ½ I₂(g) [HI], M seconds 0.389 0 0.195 520 9.75x10-2 781 4.88x10-2 912 (1) What is the half-life for the reaction starting at t=0 s? What is the half-life for the reaction starting at t=520 s? Does the half-life increase, decrease or remain constant as the reaction proceeds? [ (2) Is the reaction zero, first, or second order? (3) Based on these data, what is the rate constant for the reaction? v S S Ms1

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter11: Chemical Kinetics: Rates Of Reactions

Section11.5: Temperature And Reaction Rate: The Arrhenius Equation

Problem 11.9E: The frequency factor A is 6.31 108 L mol1 s1 and the activation energy is 10. kJ/mol for the...

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Question

Help on these two plz

A student obtained the following data for the decomposition of hydrogen iodide on a gold surface at 150 °C.
HI(g) →→→ H₂(g) + ½ I₂(g)
[HI], M
seconds
0.389
0
0.195
520
9.75x10-2
781
4.88x10-2
912
(1) What is the half-life for the reaction starting at t=0 s?
What is the half-life for the reaction starting at t=520 s?
Does the half-life increase, decrease or remain constant as the reaction proceeds? [
(2) Is the reaction zero, first, or second order?
(3) Based on these data, what is the rate constant for the reaction?
v
S
S
question.
Ms 1

A student obtained the following data for the gas phase decomposition of nitrosyl chloride at 400 K.
NOCI(g) NO(g) + ½ Cl₂(g)
[NOCI], M
seconds
0.107
0
5.35x10-2
1.81x104
2.68x10-2
5.42x104
1.34×10-2
1.26x105
S
(1) What is the half-life for the reaction starting at t=0 s?
What is the half-life for the reaction starting at t=1.81×104 s?
Does the half-life increase, decrease or remain constant as the reaction proceeds?
(2) Is the reaction zero, first, or second order?
(3) Based on these data, what is the rate constant for the reaction?
S
M-15-1

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