GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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it causes fire
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it causes water
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it will be comfortable for us since we have lot of oxygen to breath
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None of the above
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Detailed explanation-1: -Oxygen is not toxic but it maintains combustion. It normally makes up around 21 % of the atmosphere by volume. However, when its concentration exceeds 23 %, it can create a fire hazard. Pure oxygen reacts with common materials such as oil and grease to cause fires, and even explosions, when released at high pressures.
Detailed explanation-2: -Extended exposure to above-normal oxygen partial pressures, or shorter exposures to very high partial pressures, can cause oxidative damage to cell membranes leading to the collapse of the alveoli in the lungs. Pulmonary effects can present as early as within 24 hours of breathing pure oxygen.
Detailed explanation-3: -What happens if the percentage of oxygen in the air reaches to 70%? If the percentage of oxygen in the air reaches 70%, then any substance that catches fire will become difficult to extinguish the fire, as oxygen supports combustion.