Forwarded from فيزياويه كورس2
Forwarded from فيزياويه كورس2
Forwarded from فيزياويه كورس2
The linear expression in log C = log C
o
– Kt / 2.303 , If a straight line is obtained, it indicates that the reaction is A . zero order reaction B . second order reaction C . third order reaction D . first order reaction
o
– Kt / 2.303 , If a straight line is obtained, it indicates that the reaction is A . zero order reaction B . second order reaction C . third order reaction D . first order reaction
Anonymous Quiz
16%
. zero order reaction
14%
second order reaction
6%
third order reaction
64%
first order reaction
Forwarded from فيزياويه كورس2
For calculation of half life of reaction follows first order;
Anonymous Quiz
3%
½ = 4.606/k minutes
9%
t ½ = 6.909/k minutes
88%
t ½ = 0.693/k minutes
Forwarded from فيزياويه كورس2
The unit of first order rate constant is:
Anonymous Quiz
21%
mole . liter -1 .second -1
14%
liter . second-1 . mole-1
65%
second -1
Forwarded from فيزياويه كورس2
Forwarded from فيزياويه كورس2
When two reactants in the reaction have different initial concentration the difference is big the reaction is
Anonymous Quiz
26%
Second
7%
Third
67%
Pseudo first
Forwarded from فيزياويه كورس2
Forwarded from فيزياويه كورس2
The half - life of second order reaction is equals l
Anonymous Quiz
65%
1 / ak
19%
0.693 / k
15%
0.105 / k
Forwarded from فيزياويه كورس2
The Arrhenius equation for effect of temperature on the hydrolysis of a drug in aqueous solution :
Anonymous Quiz
36%
Predicts that a plot of log k against temperature will be linear .
34%
Predicts that the rate of reaction will decrease as temperature increased .
30%
) Predicts that a plot offlog k against the reciprocal of temperature will be linear
Forwarded from فيزياويه كورس2
The stability of drug affected by the following except :
Anonymous Quiz
12%
Temperature
18%
Humidity
12%
Light
58%
Pressure
Forwarded from فيزياويه كورس2
The activation energy in a chemical reaction is defined as
Anonymous Quiz
56%
the difference in energy of intermediate complex and the average energy of reactants
28%
the difference in energies of reactants and products
17%
the sum of energies of reactants and products
Forwarded from فيزياويه كورس2
Which of the following plots will yield a straight line for a first order ? reaction where the slope = -k
Anonymous Quiz
30%
time versus 1 / [ A ]
37%
In [ A ] versus time
33%
In k versus time
Forwarded from فيزياويه كورس2
When the rate of the reaction is equal to the rate constant , the order of the reaction is
Anonymous Quiz
15%
Second
18%
First
68%
Zero
Forwarded from شرح صيدلة 💊 (YasserAl-Zubiody)
17-06_22-30.pdf
21.3 KB
اسأله Colloidal
بدون حلول
الحل ينزل باجر
بلتوفيق🤍
+
نقطه 22و21
تركوهن لان الجواب مالتها هي النقطه المفقوده وناسيها مناقلها
بدون حلول
الحل ينزل باجر
بلتوفيق🤍
+
نقطه 22و21
تركوهن لان الجواب مالتها هي النقطه المفقوده وناسيها مناقلها
Forwarded from فيزياويه كورس2
In the rate equation , when the concentration of reactants is unity then the rate is equal to
Anonymous Quiz
68%
specific rate constant
17%
instantaneous rate constant
15%
average rate constant
Forwarded from فيزياويه كورس2
Rate constant in case of first order reaction is
Anonymous Quiz
18%
inversely proportional to the square of concentration units
47%
independent of concentration units
36%
inversely proportional to the concentration units
طلاب الله يخليكم باجر بالامتحان انتبه شوكت تاخذ log
شوكت تاخذ antilog
مثلا بهل سؤال 75٪ بيكم كاعد يغلطون بي ليش؟؟ لان ماخذ log هالشي غلط
اذا عدكم هيج الناتج
Log3
تاخذ مباشره
Log3
بينما اذا عندك مثلا
Logx=3
هنا تاخذ antilog
ال antilog بالحاسبه تنقر
Sheft
بعدها Log وتكتب الرقم الناتج يطلع عندك مضبووووووط
تماااااااااام؟؟؟
وآل log تكتبه هوه واشارته يعني اذا سالب سالب اذا موجب موجب
شوكت تاخذ antilog
مثلا بهل سؤال 75٪ بيكم كاعد يغلطون بي ليش؟؟ لان ماخذ log هالشي غلط
اذا عدكم هيج الناتج
Log3
تاخذ مباشره
Log3
بينما اذا عندك مثلا
Logx=3
هنا تاخذ antilog
ال antilog بالحاسبه تنقر
Sheft
بعدها Log وتكتب الرقم الناتج يطلع عندك مضبووووووط
تماااااااااام؟؟؟
وآل log تكتبه هوه واشارته يعني اذا سالب سالب اذا موجب موجب