एक रासायनिक अभिक्रिया 40°C पर 15 मिनट में 20% पूर्ण हो जाती है तथा 60°C पर 3 मिनट में पूर्ण हो जाती है, तो कितनी सक्रियण ऊर्जा की आवश्यकता होगी?

This question was previously asked in
BPSC AE Paper 3 (General Studies) 10 Nov 2022 Official Paper
View all BPSC AE Papers >
  1. 14.4 किलोकैलोरी
  2. 16.4 किलोकैलोरी
  3. 18.4 किलोकैलोरी
  4. 12.4 किलोकैलोरी

Answer (Detailed Solution Below)

Option 2 : 16.4 किलोकैलोरी
Free
BPSC AE General Studies Mock Test
4.4 K Users
20 Questions 40 Marks 25 Mins

Detailed Solution

Download Solution PDF
- amglogisticsinc.net

अवधारणा:-

एक रासायनिक अभिक्रिया दी गई है जो 20% पूर्ण हो चुकी है:

  • 40 °C (313 K) पर 15 मिनट
  • 3 मिनट 60 °C (333 K) पर

अरहेनियस समीकरण का उपयोग:
\( k = A e^{-E_a / RT}\)

अरहेनियस समीकरण का लघुगणकीय रूप है:
\( ln(k2 / k1) = (E_a / R) (1/T1 - 1/T2)\)

व्याख्या:-

  • समय का उपयोग करके दर स्थिरांक अनुपात निर्धारित करने पर:
    • k2 / k1 = 15 मिनट / 3 मिनट = 5
  • तापमान T1 = 313 K, T2 = 333 K का उपयोग करके:
    • 1 / 313 - 1 / 333 = (333 - 313) / (313 x 333) ≈ 0.000192
  • अरहेनियस समीकरण में प्रतिस्थापित करें:
    • \(ln(5) = (E_a / 1.987) x 0.000192\)
  • ln(5) ≈ 1.60944
  • \(​E_a = (1.60944 / 0.000192) x 1.987 ≈ 16.4 kcal/mol\)

इसलिए, आवश्यक सक्रियण ऊर्जा 16.4 किलोकैलोरी है। 

Latest BPSC AE Updates

Last updated on Jun 13, 2025

-> BPSC AE 2025 exam date has been revised. The exam will be conducted on July 17, 18 & 19 now. 

-> Candidates who were facing technical issues while filling form can now fill the BPSC AE application form 2025 without any issue. 

->BPSC AE age limit 2025 has been revised.

->BPSC AE application form 2025  was released on April 30. The last date to fill BPSC AE form 2025 was May 28. 

->BPSC AE interview call letters released for Advt. 32/2024.

->BPSC AE notification 2025 has been released. 

->A total of 1024 vacancies are announced through BPSC AE recruitment 2025

->The BPSC Exam Calendar 2025 has been released for the Assistant Engineer Recruitment.

-> The selection will be based on a written exam and evaluation of work experience.

-> Candidates with a graduation in the concerned engineering stream are eligible for this post.

-> To prepare for the exam solve BPSC AE Previous Year Papers. Also, attempt the BPSC AE Civil  Mock Tests.

More Chemical Kinetics Questions

Get Free Access Now
Hot Links: teen patti casino download teen patti 3a teen patti master gold apk teen patti yas