- What is a thermal explosion?
- What is the maximum atmospheric pressure a human can survive?
- How hot is a gas explosion?
- Can gasoline explode without a spark?
- Is Dynamite a low explosive?
- What is fire explosion?
- How does an explosion kill you?
- What are the two types of combustion?
- What happens to your body in a explosion?
- Can gasoline spontaneously combust?
- Can a spark ignite gasoline?
- Can air pressure kill you?
- How much PSI is in a nuclear bomb?
- Can a human survive an explosion?
- Is combustion an explosion?
- Can an explosion happen in a vacuum?
- What causes gasoline to explode?
- What is the difference between burning and explosions?
- Can heat cause explosions?
- How many PSI can kill you?
- What was the biggest explosion ever?
What is a thermal explosion?
A thermal explosion is one where the primary cause is the auto-catalysis produced by the self-heating effect of the reaction mixtures.
Such a thermal reaction stabilises when the rate of generation of heat is compensated by thermal dissipation through thermal convection and conductivity or by radiation..
What is the maximum atmospheric pressure a human can survive?
about 2.5 barThe maximum pressure for long term survival in an atmosphere of 79 % nitrogen and 21 % oxygen is limited by oxygen toxicity. The limit of the partial pressure of oxygen is about 0.5 bar, the maximum pressure therefore is about 2.5 bar.
How hot is a gas explosion?
Unlike diesel, gasoline has a very low flash point of -23 ° C. That is why under almost all conditions there is an explosive atmosphere directly above petrol. Another example: Ethyl acetate also has a low flash point: – 4 ° C. This means that this liquid is explosive at normal ambient temperatures.
Can gasoline explode without a spark?
That’s a lot of explosive energy stored in a typical, full gas tank! … This could blow a hole in the gas tank and cause the release of fumes. You could heat the gasoline up to a high enough temperature that it could ignite spontaneously: without even a spark.
Is Dynamite a low explosive?
Detonating explosives, such as TNT and dynamite, are characterized by extremely rapid decomposition and development of high pressure, whereas deflagrating explosives, such as black and smokeless powders, involve merely fast burning and produce relatively low pressures.
What is fire explosion?
Fires and explosions are reactions and conversions, respectively, of solids, liquids, or gases comprising the release of high levels of energy that are triggered by an ignition or self-ignition of the substance system. This causes a strong increase in temperature.
How does an explosion kill you?
Explosive shock waves can cause situations such as body displacement (i.e., people being thrown through the air), dismemberment, internal bleeding and ruptured eardrums. Shock waves produced by explosive events have two distinct components, the positive and negative wave.
What are the two types of combustion?
Here’s a closer look at five types of combustion:Complete Combustion. Complete combustion requires a combination of fuel and oxygen. … Incomplete Combustion. Incomplete combustion occurs when there is not enough oxygen for the fuel to fully react. … Rapid Combustion. … Spontaneous Combustion. … Explosive Combustion.
What happens to your body in a explosion?
The main direct, primary effect to humans from an explosion is the sudden increase in pressure that occurs as a blast wave passes. It can cause injury to pressure- sensitive human organs, such as ears and lungs.
Can gasoline spontaneously combust?
It’s oxidation that creates the potential for spontaneous combustion. Petroleum products like motor oil and gasoline, while flammable, do not undergo oxidation. Also, the tendency of oil to spontaneously combust is related to its iodine number — if it’s 130 or greater, the potential is there.
Can a spark ignite gasoline?
Any ignition source (cigarette, match, hot exhaust pipe or any spark) can ignite gasoline vapors. When gasoline vapors ignite, one gallon of gasoline can explode with the same force as 14 sticks of dynamite.
Can air pressure kill you?
Here are a few ways that compressed air can kill or seriously injure a person: Compressed air blown into the skin can obstruct an artery and result in an embolism. Inhaled compressed air can rupture your lungs or esophagus. Compressed air blown into the ear can rupture eardrums and cause brain damage.
How much PSI is in a nuclear bomb?
At 50 seconds after the explosion, when the fireball is no longer visible, the blast wave has traveled about 12 miles. It is then traveling at about 784 miles per hour, which is slightly faster than the speed of sound at sea level….Overpressure.Peak overpressureMaximum Wind Speed10 psi294 mph5 psi163 mph2 psi70 mph2 more rows
Can a human survive an explosion?
The human body can survive blasts of sudden pressure of 20-40 psi, but it’s not the only thing receiving that pressure. The pressure radiates outward from the blast in all directions. … Even if someone were to survive a blast – they would most likely be killed by being knocked into their surroundings.
Is combustion an explosion?
The transition from combustion to explosion is caused by an acceleration of the reaction, induced either by a rise in temperature or by increasing lengths of the reaction chain. The first is called thermal explosion, and the second is called chain explosion.
Can an explosion happen in a vacuum?
Acute exposure to the vacuum of space: No, you won’t freeze (or explode) One common misconception is that outer space is cold, but in truth, space itself has no temperature. In thermodynamic terms, temperature is a function of heat energy in a given amount of matter, and space by definition has no mass.
What causes gasoline to explode?
Gasoline vapors are heavier than air; they flow invisibly along the ground and can ignite from a flame, spark, hot surface or static electricity causing a shattering explosion.
What is the difference between burning and explosions?
The high speed of reaction distinguishes the explosive reaction from an ordinary combustion. An explosion creates a shock wave. If the shock wave travels at supersonic speed it is referred as detonation. Subsonic shock waves are slower burning processes also known as deflagration.
Can heat cause explosions?
Evolution of heat It is the rapid liberation of heat that causes the gaseous products of most explosive reactions to expand and generate high pressures. This rapid generation of high pressures of the released gas constitutes the explosion. The liberation of heat with insufficient rapidity will not cause an explosion.
How many PSI can kill you?
The threshold value for lung damage is 12 psi and fatal effect is 40 psi (Glover, 2002). At a pressure of about 35 kilopascals (5 psi), the human eardrum may rupture. With an overpressure of 100 kPa (14 PSI) almost all eardrums will be ruptured.
What was the biggest explosion ever?
Tsar BombaTsar Bomba, (Russian: “King of Bombs”) , byname of RDS-220, also called Big Ivan, Soviet thermonuclear bomb that was detonated in a test over Novaya Zemlya island in the Arctic Ocean on October 30, 1961. The largest nuclear weapon ever set off, it produced the most powerful human-made explosion ever recorded.