Q 3. a. Mention the order of reaction on the diagram and the unit of first order reaction. . . Order . .Order (slope= -k) (slope= k) In[A]. Time (s) Time (s) Order Units of rate constant ............ (slope= -k) mol L-' s-' (0 order) .. . (1t Order) L mol·' s-' (2nd Order) [A). ...... Time (s) b. The half-life of a substance in a 1“ order reaction is 15 min. Caleulate the rate constant? c. Lead (II) chloride is slightly soluble in water. PbC/2) + Pb" (m) + 2C1) Kp = 2.0 x 105 1) Write an expression for the solubility product, Ksp for lead(II) chloride and state its units. 1/[A],
Q 3. a. Mention the order of reaction on the diagram and the unit of first order reaction. . . Order . .Order (slope= -k) (slope= k) In[A]. Time (s) Time (s) Order Units of rate constant ............ (slope= -k) mol L-' s-' (0 order) .. . (1t Order) L mol·' s-' (2nd Order) [A). ...... Time (s) b. The half-life of a substance in a 1“ order reaction is 15 min. Caleulate the rate constant? c. Lead (II) chloride is slightly soluble in water. PbC/2) + Pb" (m) + 2C1) Kp = 2.0 x 105 1) Write an expression for the solubility product, Ksp for lead(II) chloride and state its units. 1/[A],
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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![Q 3. a. Mention the order of reaction on the diagram and the unit of first order reaction.
[2]
....Order
. Order
(slope= -k)
(slope= k)
In[A],
Time (s)
Time (s)
Order
Units of rate constant
......
(slope= -k)
mol L-' s-' (0 order)
.. (1st Order)
L mol-1 s-' (2nd Order)
[A].
Time (s)
b. The half-life of a substance in a 1* order reaction is 15 min. Calculate the rate constant?
[2]
c. Lead (II) chloride is slightly soluble in water.
PbClas) + Pb"a4) + 2C1 (m)
(1) Write an expression for the solubility product, Ksp for lead(I) chloride and state its units. [1]
Kep = 2.0 x 105
미
Kp =
units
1/[A].](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F74bc4d57-464a-4741-8c70-c3ff61492dd0%2F8e8d74af-e1c9-4a6a-b192-49539ddaeaff%2F5y3q0z_processed.png&w=3840&q=75)
Transcribed Image Text:Q 3. a. Mention the order of reaction on the diagram and the unit of first order reaction.
[2]
....Order
. Order
(slope= -k)
(slope= k)
In[A],
Time (s)
Time (s)
Order
Units of rate constant
......
(slope= -k)
mol L-' s-' (0 order)
.. (1st Order)
L mol-1 s-' (2nd Order)
[A].
Time (s)
b. The half-life of a substance in a 1* order reaction is 15 min. Calculate the rate constant?
[2]
c. Lead (II) chloride is slightly soluble in water.
PbClas) + Pb"a4) + 2C1 (m)
(1) Write an expression for the solubility product, Ksp for lead(I) chloride and state its units. [1]
Kep = 2.0 x 105
미
Kp =
units
1/[A].
![(ii) Calculate [Pb"(aq] in a saturated solution of PbCl2.
[1]
An excess of PbClas) is stirred with 0.50 mol dm NaCl until equilibrium has been established.
The excess PbC/xo) is then filtered off.
(iii) Assuming [C/] remains at 0.50 mol dm 3 throughout, calculate the [Pb(] in the
remaining solution.
[1]
(iv) Suggest an explanation for the difference between this value and the value that you
calculated in (ii).
.[1]
Total [08]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F74bc4d57-464a-4741-8c70-c3ff61492dd0%2F8e8d74af-e1c9-4a6a-b192-49539ddaeaff%2Fxuhwkug_processed.png&w=3840&q=75)
Transcribed Image Text:(ii) Calculate [Pb"(aq] in a saturated solution of PbCl2.
[1]
An excess of PbClas) is stirred with 0.50 mol dm NaCl until equilibrium has been established.
The excess PbC/xo) is then filtered off.
(iii) Assuming [C/] remains at 0.50 mol dm 3 throughout, calculate the [Pb(] in the
remaining solution.
[1]
(iv) Suggest an explanation for the difference between this value and the value that you
calculated in (ii).
.[1]
Total [08]
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