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Which contains more carbon dioxide : inh...

Which contains more carbon dioxide : inhaled air or exhaled air ?

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**Step-by-Step Solution:** 1. **Understanding Respiration**: Respiration is the process by which organisms take in oxygen and release carbon dioxide. It consists of two main phases: inhalation (inspiration) and exhalation (expiration). 2. **Inhaled Air Composition**: When we inhale, we take in air that primarily contains oxygen (approximately 21% oxygen) and a very small amount of carbon dioxide (about 0.04%). 3. **Exhaled Air Composition**: During exhalation, the body releases air that has a different composition. After the oxygen is used by the body for metabolic processes, carbon dioxide is produced as a waste product. 4. **Carbon Dioxide in Exhaled Air**: The exhaled air contains a significantly higher concentration of carbon dioxide, approximately 4-5% compared to the inhaled air. This is because carbon dioxide is a byproduct of the oxidation of food in the body. 5. **Conclusion**: Therefore, exhaled air contains more carbon dioxide than inhaled air. **Final Answer**: Exhaled air contains more carbon dioxide than inhaled air. ---
**Step-by-Step Solution:** 1. **Understanding Respiration**: Respiration is the process by which organisms take in oxygen and release carbon dioxide. It consists of two main phases: inhalation (inspiration) and exhalation (expiration). 2. **Inhaled Air Composition**: When we inhale, we take in air that primarily contains oxygen (approximately 21% oxygen) and a very small amount of carbon dioxide (about 0.04%). 3. **Exhaled Air Composition**: During exhalation, the body releases air that has a different composition. After the oxygen is used by the body for metabolic processes, carbon dioxide is produced as a waste product. ...
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(a) Give the main points of difference between respiration in plants and respiration in animals (b) Describe the exchange of gases which takes place in the leaves of plant (a) during daytime, and (b) at night. (c) Which contains more carbon dixoide: exhaled air or inhaled air? Why?

A self-contained breathing apparatus uses potassium superoxide, KO_(2) , to convert the carbon dioxide and water in exhaled air into oxygen, as shown by the equation: 4KO_(2)(s)+2H_(2)O(g)+4CO_(2)(g)to4HCO_(3)(g)+3O_(2)(g) How many molecules of oxygen gas will be produced from 0.0468 g of carbon dioxide that is exhaled in a typical breath?

Knowledge Check

  • The excess of carbon dioxide in air causes

    A
    fog
    B
    smog
    C
    global warming
    D
    acid rain

  • The correct percentage of oxygen and carbon dioxide in inhaled air is

    A
    Oxygen-16.4%,Carbon dioxide-4.4%
    B
    Oxygen-21 %, Carbon dioxide-4.4%
    C
    Oxygen-16.4, Carbon dioxide--0.04%
    D
    Oxygen-21%, Carbon dioxlde-0.04%

  • The correct percentage of oxygen and carbon dioxide in inhaled air is

    A
    Oxygen-16.4%, Carbon dioxide-4.4%
    B
    Oxygen 21%, Carbon dioxide-4.4%
    C
    Oxygen-16.4, Carbon dioxide-0.04%
    D
    Oxygen-21%, Carbon dioxide-0.04%

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    Tidal volume is that volume of air which is inhaled (and exhaled) in one breath by a human during quiet breathing. For a normal man this volume is close to 0.6 litre. 35% of oxygen (in terms of molecular count) gets converted into carbon – di – oxide in the exhaled air. Nearly 21% of the air that we breath in is oxygen. Assume that a man is breathing when the air is at STP and the moisture content of inhaled and exhaled air is same. Estimate the difference in mass of an inhaled breath and exhaled breath.

    Increased concentration of carbon dioxide in the air is supposed to be the cause of _________.

    Is excess of carbon dioxide an air-pollutant ?

    Assertion (A): The expulsion of carbon dioxide occurs due to the increase in pressure in the thoracic cavity. Reason (R): Exhaled air contains higher per- centage of carbon dioxide than normal air.

    The increasing amount of carbon dioxide in the air is slowly raising the temperature of the atmosphere, because it absorbs

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