Why is respiration considered an exothermic reaction explain exothermic reaction
An exothermic reaction is defined as a chemical reaction that releases heat or light into its surroundings. Respiration is considered an exothermic reaction because during the respiration process, glucose molecules combine with oxygen to form carbon dioxide and water, releasing energy. This energy release characterizes respiration as an exothermic reaction.
Frequently Asked Questions (FAQ)
Qno1.why is respiration considered to be an exothermic reaction
Ans: in respiration process energy release, so in this was respiration considered to be an exothermic reaction
Qno2.why is respiration considered an exothermic reaction class 10
Ans.in respiration process energy release so respiration considered an exothermic reaction
Qno3.exothermic reaction in hindi
ऊष्माक्षेपी प्रतिक्रिया एक रासायनिक प्रतिक्रिया है जो अपने परिवेश में गर्मी या प्रकाश छोड़ती है। शब्द “एक्सोथर्मिक” ग्रीक शब्द “एक्सो” से आया है, जिसका अर्थ है विकसित होना, और “थर्म”, जिसका अर्थ है गर्मी। उदाहरण के लिए, जब प्राकृतिक गैस जलती है, तो यह एक ऊष्माक्षेपी प्रतिक्रिया से गुजरती है, जिससे गर्मी और प्रकाश दोनों उत्पन्न होते हैं:
CH4 + O2 → CO2 + H2O + ऊष्मा + प्रकाश
उष्माक्षेपी प्रतिक्रिया का एक अन्य उदाहरण पानी बनाने के लिए हाइड्रोजन और ऑक्सीजन के बीच की प्रतिक्रिया है:
H2 + O2 → H2O + ऊष्मा + प्रकाश
Qno4.what is exothermic and endothermic reaction
An exothermic reaction is a chemical reaction that releases heat or light into its surroundings. The term “exothermic” comes from the Greek words “exo,” meaning to evolve, and “therm,” meaning heat. For example, when natural gas burns, it undergoes an exothermic reaction, producing both heat and light:
CH4 + O2 → CO2 + H2O + heat + light
Another example of an exothermic reaction is the reaction between hydrogen and oxygen to form water:
H2 + O2 → H2O + heat + light
On the other hand, an endothermic reaction is a chemical reaction that absorbs energy from its surroundings. The term “endothermic” also originates from Greek, with “endo” meaning to absorb and “therm” still meaning heat. For instance, when limestone is heated to 1000°C, it decomposes in an endothermic reaction:
CaCO3 + heat → CaO + CO2
When electricity is passed through water, it decomposes into hydrogen and oxygen. This is also an example of an endothermic reaction.
It’s important to note that all endothermic reactions require a continuous source of energy, whereas exothermic reactions may require an initial source of energy but then proceed on their own.
In the context of natural processes, photosynthesis is a significant endothermic reaction. Plants combine carbon dioxide and water in the presence of sunlight to produce glucose and oxygen. This process is essential for life, as it generates food and oxygen for all living organisms:
6 CO2 + 6 H2O + sunlight → C6H12O6 + 6 O2
Another naturally occurring endothermic reaction crucial for life on Earth is found in the upper atmosphere. Ozone (O3) absorbs harmful ultraviolet rays from the sun and converts oxygen (O2) into ozone, forming the ozone layer. This layer protects living things on Earth from the dangers of excessive sun radiation.
