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What makes an air bag inflate?
The mechanism for the airbag contains sodium azide (NaN3). In the event of an accident, the sodium azide rapidly decomposes into sodium metal and nitrogen gas. The latter fills the airbag.
Does liquid nitrogen freeze instantly?
Liquid nitrogen does not freeze instantly; instead, it evaporates rapidly at room temperature. When it comes into contact with objects, such as food or skin, the extreme cold temperature of liquid nitrogen can cause rapid freezing of the water content in those objects, giving the appearance of instantaneous freezing.
What is the expansion rate of nitrogen liquid to gas?
The expansion rate of liquid nitrogen is 697 to 1.
What type of gas inflates the air bags?
The gas that inflates airbags is typically nitrogen, which is generated rapidly through a chemical reaction when the airbag is deployed. This reaction often involves sodium azide, which decomposes to produce nitrogen gas when ignited by an electrical signal from the car's sensors. The rapid expansion of nitrogen fills the airbag almost instantaneously, providing a cushion to protect occupants during a collision.
What molecular changes happen when thermal energy is added or removed from nitrogen?
When thermal energy is added to nitrogen, the molecular motion increases, causing the molecules to vibrate and move more rapidly. This results in an increase in temperature. When thermal energy is removed, molecular motion decreases, leading to a decrease in temperature. The phase of nitrogen may change depending on the temperature, transitioning between solid, liquid, and gas states.
What gas or liquid pumped into water would cause it to freeze instantly?
Liquid nitrogen can cause water to freeze instantly when pumped into it. Liquid nitrogen has a very low temperature of -320°F (-196°C), causing the water to freeze rapidly upon contact.
The production of ammonia from gaseous hydrogen and gaseous nitrogen will what at a higher temperature?
The production of ammonia from gaseous hydrogen and gaseous nitrogen will increase at a higher temperature. This is because the reaction is endothermic, meaning it requires heat to proceed. Higher temperatures provide the necessary energy for the reaction to occur more rapidly.
Does liquid nitrogen freeze water?
Yes, liquid nitrogen has a temperature of around -320°F (-196°C), which is low enough to freeze water almost instantly upon contact. When liquid nitrogen comes into contact with water, the water rapidly freezes and forms ice.
Why is sodium azide used in air bags?
Sodium azide is used in air bags as a propellant to rapidly inflate the air bag in the event of a collision. When the azide is ignited, it decomposes to form nitrogen gas, which inflates the air bag quickly and effectively to protect occupants in the vehicle.
Why does liquid nitrogen make things shatter?
When an object is immersed in liquid nitrogen, the extreme cold causes the material to rapidly contract and become brittle. Subsequent exposure to room temperature causes the material to quickly expand, leading to internal stress that can cause it to shatter.
Why does Liquid Nitrogen evaporate?
This is a very good question. Nitrogen is an element that usually stays in a gas state. To make it a liquid, it has to be chilled almost to absolute zero. The moment that liquid nitrogen comes into contact with room temperature, it begins to heat up, rapidly. The Fog that you observe is just the liquid nitrogen changing from a liquid to a gas state. This occurs very quickly. Hope this helps!
What happens when ammonium nitrate decomposes?
When ammonium nitrate decomposes it releases a huge amount of gases.including oxygen.nitrogen.and water vapor.when fuel is mixed with this substance it acts like a generator it breaks down and releases these gases the cycle keeps repeating that can lead to a powerful explosion.
