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  • 1 answers

Saloni Gupta 6 years, 6 months ago

In other subject list....then previous year question paper.... Check out commercial art question paper 2018
  • 1 answers

Gaurav Seth 6 years, 6 months ago

Relation between equilibrium constant k, Ea and T is given by the equation
ln k = – Ea/RT + ln A
If we have different rate constant at different temperature then given equation can be modified to find out the Ea and A as follows:
​log k2/log k1 = Ea/2.303 R[T2-T1/T1T2]...(1)
Putting the values in equation (1) we get,
log 0.07/log 0.02 = Ea/2.303 x 8.314 J K-1 mol-1 (700-500/700 x 500)
0.544 = Ea × 5.714 × 10-4 /19.15
 Ea = 0.544 × 19.15 / 5.714 × 10–4 = 18230.8 J
Since k = Ae-Ea/RT
Here we can take any value of k and its corresponding temperature
0.02 = Ae-18230.8/8.314 × 500
(Note to calculate e-18230.8/8.314 × 500 you can find the antilog of total solved value
antilog of -18230.8/8.314 × 500 is 0.012)
A = 0.02/0.012 = 1.61

  • 1 answers

Rohtash Sehrawat 6 years, 6 months ago

Ha plz bata do koi plz varna mai pass nhi ho paungi 12th class mai
  • 1 answers

Nikhil Sharma 6 years, 6 months ago

Read Chapter Summary in detail,Work on previous Year sample paper and submit all the projects in time.
  • 2 answers

Paras Kundu 6 years, 6 months ago

Thahs ashu sharma☺☺

Nikhil Sharma 6 years, 6 months ago

In this app you will find all practice material for your exam.
  • 1 answers

Pranab Reang 6 years, 6 months ago

2019
  • 2 answers

Anubhav Kothiyal 6 years, 6 months ago

Thank you so much

Nikhil Sharma 6 years, 6 months ago

Yes you can find it on other subject categary
  • 1 answers

Rohtash Sehrawat 6 years, 6 months ago

It may be possible . Hona to chaiye .I am sure ki 5th sub paper will help us in upgrading our marks. Think +ve
  • 3 answers

Tessa Violet 6 years, 6 months ago

No the 5th subject is not optional ..6th is . If you've chosen 5 subs then all of them are compulsory

Utkarsh Anand 6 years, 6 months ago

If i am failing in any of one main paper its number is added or not?

Tripti Taneja 6 years, 6 months ago

Yes !! It help
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Priya Tanu 6 years, 7 months ago

Painting code049
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Jewel Maria 6 years, 7 months ago

red blood cells
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Jewel Maria 6 years, 7 months ago

April
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Satyajeet Kumar 6 years, 7 months ago

The desert animals find ways to survive for many days without water.Gerbils keep themselves cool in underground holes.The beetles catch dropes of moisture on their legs.The camels get moisture from desert plants

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