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The following mechanism has been proposed for the gas-phase reaction of chloroform (CHCl3) and chlorine.Cl2 ⇌ 2Cl (fast, reversible) Cl + CHCl3 → HCl + CCl3 (slow) Cl + CCl3 → CCl4 (fast) What rate law does this mechanism predict?A)kG) [CHCl3]1/2M) [CCl3]2B) [Cl2]H) [CCl3]1/2N) [HCl]2C) [Cl]I) [HCl]1/2O) [Cl2]2D) [CHCl3]J) [Cl2]1/2P) [Cl]2E) [CCl3]K) [Cl]1/2 F) [HCl]L) [CHCl3]2
The following mechanism has been proposed for the gas-phase reaction of chloroform (CHCl3) and chlorine.Cl2 ⇌ 2Cl (fast, reversible) Cl + CHCl3 → HCl + CCl3 (slow) Cl + CCl3 → CCl4 (fast) What rate law does this mechanism predict?A)kG) [CHCl3]1/2M) [CCl3]2B) [Cl2]H) [CCl3]1/2N) [HCl]2C) [Cl]I) [HCl]1/2O) [Cl2]2D) [CHCl3]J) [Cl2]1/2P) [Cl]2E) [CCl3]K) [Cl]1/2 F) [HCl]L) [CHCl3]2
Question
Asked Oct 30, 2019
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The following mechanism has been proposed for the gas-phase reaction of chloroform (CHCl3) and chlorine.
Cl2 ⇌ 2Cl (fast, reversible)
Cl + CHCl3 → HCl + CCl3 (slow)
Cl + CCl3 → CCl4 (fast)
What rate law does this mechanism predict?
A)k G) [CHCl3]1/2 M) [CCl3]2
B) [Cl2] H) [CCl3]1/2 N) [HCl]2
C) [Cl] I) [HCl]1/2 O) [Cl2]2
D) [CHCl3] J) [Cl2]1/2 P) [Cl]2
E) [CCl3] K) [Cl]1/2
F) [HCl] L) [CHCl3]2
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Expert Answer
Step 1
The three step mechanism of the given reaction is,
CL2 dissociate to give chorine a fast and reverse reaction.
React with CHCL3 to give HCL and CCL3 a slow reaction
React with CL to give CCL4.
Step 2
Add equation (1), (2), and (3) to get the overall reaction.
The overall reaction is expressed as,
CL2 dissociate to give chorine a fast and reverse reaction.
React with CHCL3 to give HCL and CCL3 a slow reaction
React with CL to give CCL4.
Step 3
The chlorine atom produced in equation (1) is consumed in equation (3) and CCl3 a molecule is produced in equation (2) is consumed in equation (3).
CL react with CHCL3 to give a reversible reaction of HCL and CCL4.
In a gas, the particles are evenly spaced out and not in any particular order. There is no regular arrangement of liquid next to one another. Solids are regularly arranged and closely packed.
They can be compressed a lot (particles are widely spaced). Matter exists in three different states: solid, liquid, and gas.
By examining the configuration of their particles, it is possible to understand why they have various qualities.
A solid is a condition of matter that, even when unconstrained, keeps its shape and density.
A liquid is a nearly incompressible fluid with a (almost) constant volume regardless of pressure that adapts to the shape of its container.
A sample of matter that assumes the shape of the container it is stored in and develops a consistent density inside the container is referred to as a gas.
Therefore, the arrangements of individual particles in solids, liquids, and gases is different.
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CH4 + 3O2 yields CO2 + 2H2O
Al4C3 + 3H2O yields CH4 + 4Al(OH)3
Zn + 2HCl yields ZnCl2 + H2
An appropriate hypothesis explaining the observation of distant galaxies moving away from each other, and that they do so more rapidly the further they are can be found in the Big Bang Theory. This theory suggests our universe began with a 'big bang' causing galaxies to move away from each other, a process which continues today.
Based on the observations mentioned, an appropriate hypothesis might involve the Big Bang Theory. This theory in physics and astronomy assumes that our universe started from a singularity - a very high-density and high-temperature state. The Big Bang Theory suggests that after the initial explosion, the galaxies began moving away from each other, a process which continues till today.
The farther a galaxy is from us, the faster it's receding, which is known as Hubble's Law. This observed phenomenon matches with the theory's premise, providing validating evidence for the Big Bang.
Learn more about Big Bang Theory here:
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