intransitive verb. : to explode with sudden violence. transitive verb. 1 : to cause to detonate detonate a bomb — compare deflagrate. 2 : to set off in a burst of activity : spark programs that detonated controversies.
What is the meaning of the deflagrating spoon?
: a spoon with a long vertical handle used in deflagration experiments.
Which one of the following is definition of a deflagration?
Definition of ‘deflagration’
A deflagration is a fire in which a flame travels rapidly, but at subsonic speed, through a gas. Deflagration is an explosion in which the speed of burning is lower than the speed of sound in the surroundings.
What causes deflagration?
A deflagration occurs when a flame front propagates by transferring heat and mass to the unburned air–vapor mixture ahead of the front. The combustion wave travels at subsonic speeds to unburned gas immediately ahead of the flame front. … Most vapor cloud explosions fall into this category.
What is deflagration flame?
Deflagration – A flame front propagating through a flammable gas or vapor at a velocity less than the speed of sound in that gas or vapor. Detonation – (Also “Stable Detonation”) A flame front propagating through a flammable gas or vapor at a velocity equal to the speed of sound in that gas or vapor.
What is a gas jar?
Filters. (sciences) A container used for collecting gas from experiments. It looks like a tube with a broad base and a broad opening.
What is a Scoopula in chemistry?
Scoopula is a brand name of a spatula-like scoop utensil used primarily in chemistry lab settings to transfer solids: to a weigh paper for weighing, to a cover slip to measure melting point, or a graduated cylinder, or to a watch glass from a flask or beaker through scraping.
What does Appositeness mean?
: highly pertinent or appropriate : apt apposite remarks apposite examples.
What does Deternate mean?
1 : having defined limits a determinate period of time. 2 : definitely settled a determinate order of precedence. 3 : conclusively determined : definitive a determinate answer.
What fulminate means?
: to utter or send out with denunciation fulminate a decree. intransitive verb. : to send forth censures or invectives fulminating against government regulators— Mark Singer.
What is a source of fuel?
sources of fuel include wood, paper, plastic, rubber or foam, loose packaging materials, waste rubbish and furniture. sources of oxygen include the air around us.
What is combustion of fuel?
Combustion, or burning, is a high-temperature exothermic redox chemical reaction between a fuel (the reductant) and an oxidant, usually atmospheric oxygen, that produces oxidized, often gaseous products, in a mixture termed as smoke. … Combustion is often a complicated sequence of elementary radical reactions.
What are reaction types?
Basic chemical reactions can be grouped into categories based on the types of changes that are occuring during the reaction. There are five basic categories – synthesis, decomposition, combustion, single replacement, and double replacement.
What uses a beaker?
Beakers are useful as a reaction container or to hold liquid or solid samples. They are also used to catch liquids from titrations and filtrates from filtering operations. Laboratory Burners are sources of heat.
What is the function of Bunsen burner?
Bunsen burner, device for combining a flammable gas with controlled amounts of air before ignition; it produces a hotter flame than would be possible using the ambient air and gas alone.
What is pressure deflagration limit?
This paper deals with the low pressure deflagration limit (LPDL), which is the minimum pressure below which burning of a propellant ceases without the assistance of an external energy source.
What is an example of a low explosive?
The black powder used in fireworks is one example of a low explosive. … Fireworks hold black powder inside a cardboard or paper tube so that once the powder has burned, the gases burst the container noisily.
What is the difference between deflagration and conflagration?
is that conflagration is a large fire extending to many objects, or over a large space; a general burning while deflagration is the act of deflagrating; an intense fire; a conflagration or explosion specifically, combustion that spreads subsonically via thermal conduction.
What is a deflagration panel?
Deflagration vents are an explosion protection measure that uses a preplanned escape route to release the pressure and flames generated during an explosion safely. This release prevents a dangerous buildup of pressure within the equipment or building that is being protected.
How does det cord work?
description. Detonating cord, also called Cordeau and Primacord, is a hollow cord filled with an explosive material. It is fired by a detonator and is capable of initiating the detonation of certain other explosives at any number of points and in any desired pattern.
What are high explosives?
High explosives are materials that are characterized by a very high rate of reaction, high pressure development, and the presence of a detonation wave. The guideline applies to the following explosives: blasting explosives in bulk or in packaged form, e.g.; ANFO (ammonium nitrate / fuel oil);