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Anushka Ranaut
Subject: Chemistry
, asked on 12/3/18
for the reaction to 2A + B +C------>A2B +C. The rate law is 2?10^-3. Determine the rate of the reaction when the concentration of a is 0.1. B is 0.2 also determine the rate 0.06 mole of A has reacted.
Answer
2
Prerna Varshney
Subject: Chemistry
, asked on 12/3/18
Solve this:
Q 26.
i)
Graphically explain the effect of temperature on the rate constant of reaction? How can this temperature effect on rate constant be represented quantitatively?
Answer
1
Prerna Varshney
Subject: Chemistry
, asked on 10/3/18
What is this encircled 'K meant for????
The rate constant for the first order decomposition of H
2
0
2
is given by the
following equation :
log k 14.2 -
1
.
0
×
10
4
k
T
Calculate E
a
for this reaction and rate constant k if its half-life period be 200 minutes
(Given : R =8.314 JK
-I
mol
-1
)
Answer
1
Nithyashrri Saravanan
Subject: Chemistry
, asked on 10/3/18
Dear experts why is instantaneous rate of a reaction does not change when a part of the reaction solution is taken out
Answer
1
Nithyashrri Saravanan
Subject: Chemistry
, asked on 10/3/18
Dear experts what will be the order of reaction if rate of reaction does not decrease with time
Answer
1
Nithyashrri Saravanan
Subject: Chemistry
, asked on 10/3/18
Dear experts for a zero order reaction rate is independent of concentration but why do we have concentration being related in half life expression for zero order reaction
Answer
1
Godhuli Kundu
Subject: Chemistry
, asked on 10/3/18
Urgent
Q. Show that the time required for completion of
3
4
th of reaction of first order is twice that of half-life (
t
1
2
) of the reaction.
Answer
1
Godhuli Kundu
Subject: Chemistry
, asked on 10/3/18
Urgent
Answer
2
Archana
Subject: Chemistry
, asked on 8/3/18
Q. Will they ask these graphs for board exams from chemical kinetics?
Answer
3
Prerna Varshney
Subject: Chemistry
, asked on 8/3/18
Pls do not give link and give Ans other than the answer given in the photo
Answer
1
Vinuthna Terala
Subject: Chemistry
, asked on 25/2/18
Pls ans asap
Answer
1
Vinuthna Terala
Subject: Chemistry
, asked on 25/2/18
Solve this :
A) For the decomposition of azoisopropane to hexane and nitrogen at 543K, the following data is obtained :
Time (sec)
Pressure (mm of Hg)
0
35.0
360
54.0
720
63.0
Calculate rate constant.
B) Differentiate between :
i) zero order and pseudo first order reaction
ii) rate of reaction and specific rate
Answer
1
Laieeqa
Subject: Chemistry
, asked on 21/2/18
Thermodynamic feasibility of the reaction alone cannot decide the rate of the reaction.explain with the help of example
Answer
1
Dipesh Malhotra
Subject: Chemistry
, asked on 20/2/18
Solve this:
Q.(i) The activation energy for the reaction
2HI (g)
→
H
2
(g) + I
2
(g),
is 209.5 kJ mol
–1
at 581 K. Calculate the fraction of molecules having energy equal to or greater than activation energy. [ R = 8.31 J K
–1
mol
–1
]
(ii) What is the effect of temperature on the rate constant of a reaction ? How can this temperature effect on rate constant be expressed quantitatively ?
Answer
3
Varnika Dhiman
Subject: Chemistry
, asked on 19/2/18
• Increase in temperature or decrease in activation energy will result in an increase in the rate of the reaction and this increase is exponential.
Q. How did we conclude above statement?
Answer
2
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What are you looking for?
Q 26.
i) Graphically explain the effect of temperature on the rate constant of reaction? How can this temperature effect on rate constant be represented quantitatively?
The rate constant for the first order decomposition of H202 is given by the
following equation :
log k 14.2 -
Calculate Ea for this reaction and rate constant k if its half-life period be 200 minutes
(Given : R =8.314 JK-I mol-1 )
Q. Show that the time required for completion of th of reaction of first order is twice that of half-life () of the reaction.
A) For the decomposition of azoisopropane to hexane and nitrogen at 543K, the following data is obtained :
B) Differentiate between :
i) zero order and pseudo first order reaction
ii) rate of reaction and specific rate
Q.(i) The activation energy for the reaction
2HI (g) H2(g) + I2(g),
is 209.5 kJ mol–1 at 581 K. Calculate the fraction of molecules having energy equal to or greater than activation energy. [ R = 8.31 J K–1 mol –1]
(ii) What is the effect of temperature on the rate constant of a reaction ? How can this temperature effect on rate constant be expressed quantitatively ?
Q. How did we conclude above statement?