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प्रश्न
Compare respiration and combustion-both involving oxygen of the air.
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उत्तर
Respiration is a process whereby living organisms
- Use oxygen from the air to oxidize food substances mainly glucose, in their body cells.
- Release energy in the form of heat.
- Carbon dioxide and water vapour are also produced and released in the exhaled air.
\[\ce{Glucose + \underset{\text{(in air)}}{Oxygen} -> \underset{\text{Exhaled air}}{Carbon dioxide + Water vapour + Energy(heat)}}\]
Combustion or burning, involves oxidation i.e. combination of substances like fuels with oxygen or air generally resulting in the production of heat and light.
\[\ce{Fuel + \underset{\text{(in air)}}{Oxygen} ->Carbon dioxide + Water vapour + \underset{\text{(heat and light)}}{Energy}}\]
Carbon dioxide is released into the air as a result of all burning.
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संबंधित प्रश्न
What happens when Carbon burns in oxygen ? Also give the balanced chemical equation for the reaction.
Write fully balanced equation for the following :
Ca(OH)2 + CO2 →
Write ‘true’ or ‘false for the following;
The major component of air is oxygen.
Give word equation for the following conversion:
Nitric acid to soluble nitrates in the soil
What is the source of oxygen gas in air?
What is the percentage of oxygen in air?
What are the components of air?
Match the following:
| 1. | More industrial cities | a. | dust particles |
| 2. | Coastal areas | b. | Humidity |
| 3. | Rainy season | c. | Carbon dioxide |
| 4. | Windy places | d. | water vapour |
The solid form of CO2 is called dry ice which undergoes condensation.
Which of the following components of air is present in the largest amount in the atmosphere?
