Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Engineering
  • A first order reaction is 50 percent completed in 20 min at 27 deg C and in 5 min at 47 deg C The activation energy of the

A first order reaction is 50 percent completed in 20 min at 27 deg C and in 5 min at 47 deg C. The activation energy of the reaction is?

Answers (1)

best_answer

It's a first order reaction and reaction is 50% completed (half life period) in 20 min at 27 deg C and in 5 min at 47 deg C.

\\using \:half\:life\:equation\:\\K=\frac{0.693}{t_{1/2}}\\k_1=\frac{0.693}{20\min}=0.0346\:@\:27^o\\k_2=\frac{0.693}{5\min}=0.1386\:@\:47^o\\T_1=273+27=300K\\T_2=273+47=320K\\You \:got\:all\:the \:value.\:Put\:this\:values\:in\:the\:equation\:and\:solve\:for\:E_a

Posted by

himanshu.meshram

View full answer

JEE Main high-scoring chapters and topics

Study 40% syllabus and score up to 100% marks in JEE

Similar Questions

Trending Articles/News

anam-khan

Faridabad: 17-year-old girl preparing for JEE Main 2026 dies by suicide
anam-khan

NTA JEE Mains 2026 application closes at 9 am today; correction facility from December 1
anam-khan

JEE Main 2026 Registration LIVE: NTA session 1 correction facility opens on December 1; exam pattern, cut-offs

Latest Question