Why hydrogen and oxygen do not …
CBSE, JEE, NEET, CUET
Question Bank, Mock Tests, Exam Papers
NCERT Solutions, Sample Papers, Notes, Videos
Posted by Mamta Vaish 6 years, 9 months ago
- 2 answers
Ashutosh Kumar 6 years, 9 months ago
The activation energy barrier to the reaction is indeed very large. The Arrhenius equation allows the rate constant, k, for a reaction to be determined:
k = Ae^(-Ea/RT)
where A = Arrhenius pre-exponential factor (depends on the system in question)
Ea = activation energy barrier in J/mol
R = 8.314 J/(K·mol)
T = absolute temperature in K
If Ea is sufficient large, k can be so close to zero that the reaction essentially will not occur at the temperature
Related Questions
Posted by Shambhavi - 1 week, 2 days ago
- 2 answers
Posted by Rain Jd 3 days, 12 hours ago
- 1 answers
Posted by Rain Jd 3 days, 12 hours ago
- 1 answers
Posted by Rain Jd 3 days, 12 hours ago
- 0 answers
Posted by Rain Jd 3 days, 12 hours ago
- 0 answers
Posted by Chrisann Fern 6 days, 12 hours ago
- 0 answers
Posted by Rain Jd 3 days, 12 hours ago
- 1 answers
Posted by Jasmanpreet Kaur 1 week, 2 days ago
- 1 answers
Posted by Kartik Khare 3 days, 8 hours ago
- 1 answers
Posted by Rain Jd 3 days, 12 hours ago
- 1 answers
myCBSEguide
Trusted by 1 Crore+ Students
Test Generator
Create papers online. It's FREE.
CUET Mock Tests
75,000+ questions to practice only on myCBSEguide app
Dr. Kamlapati Bhatt 6 years, 9 months ago
This is because the speed of the molecules in the gaseous mixture at room temperature does not provide enough kinetic energy to activate the reaction during collision between the reactants . A mixture of gases is formed with potential to react or explode violently , if sufficient energy is given. to such a gaseous mixture .Even introduction of an spark to this mixture results in raised temperature among some of the hydrogen and oxygen molecules causing their faster collision . This , then results into an exothermic reaction proceeding violently .
2H2(g) + O2(g) ---------> 2 H2 O (g)
0Thank You