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WHAT IS THE FULL FORM OF CNG AND LPG ?????????
list out 10 combustible materials and 10 non combustible materials
difference between rapid combustion , spontaneous combustion and explosion
What is S.I unit of calorific value?
why hydrogen not used as a fuel ?
name two solid fuels,two liquid fuels and two gasious fuel
The blue zone in a candle flame is blue in colour due to complete combustion. Complete combustion takes place in invisible (non-luminous) zone also. Instead of becoming blue in colour, why is it invisible to us?
Is rusting of iron a combustion process ?
What is the difference between burning of coal and burning of candle ?
what is ideal fuel?
WHY DO WE WRAP A BLANKET AROUND A PERSON WHOSE CLOTHES CAUGHT FIRE
What is rapid combustion?Give examples.
oxygen, nitrogen, carbondioxide, carbon monoxide--------which is odd one out and why
how is cough formed in our body?????
list some characteristics of an ideal feul?
why do you have to use paper or kerosene oil to start fire in wood or coal
how many types of combustion are there explain them
Q88)Name and give chemical equations to show the products of the combustion reation in:
a)a limited supply of air
b)sufficient supply of air
distinguish between combustible and non combustible substances ,giving three examples of each
WHAT PROBLEM WILL ARISE IF A FUEL HAS AN IGNITION TEMPERATURE LOWER THAN THE AVERAGE ROOM TEMPERATURE ? NAME THE TYPE OF COMBUSTIONWILL OCCUR IN THIS CASE
all combustible substance are not fuel. Why??
Please classify the following substances as combustible/non-combustible:-
(a) Iron nails; (b) Stone piece; (c) Straw; (d) Glass
Thank You in advance! :)
some judicious use of fossil fuels.
WHAT KIND OF FIRES CAN EFFECTIVELY BE PUT OUT BY WATER? WHAT KIND OF FIRES IS TI NOT SUITABLE FOR? GIVE REASONS FOR BOTH CASES
what is ideal fuel.
Calorific value of cow dung cakes is 7000 J/KG. How much cow dung cakes are required to produce heat energy of 35000 J ?
please answer to this question and its chemistry, COUMBUSTION AND FLAME.
What are inert gases?give some examples?
Why does a goldsmith blow the outermost zone of a flame with metallic blowpipe for melting gold and silver?
what is the difference between combustible and inflammable substances?
what's the advantage of fish having a streamlined body ?
why does the paper cup containing water not catch fire on heating ?
give 3 conditions which are necessary for combustion?
Green leaves do not burn easily while dry leaves catch fire easily.Explain.
Is LPG a better domestic fuel than wood and why ?
Only gases burn with a flame. But when you burn wood, it initially burns with a flame. Later, it only glows without a flame. Why?
NAME ONE FUEL WHICH BURNS WITHOUT GIVING OFF WATER VAPOUR? AND WHY?
The calorific value of a fuel is 330000 kJ/kg. 0.9634 kg of the fuel is taken for combustion..
What is calorific value ?
Why do forest fire occurs during hot summers?
WHY DOES A MATCHSTICK BURN ON RUBBING IT ON THE SIDE OF THE MATCHBOX
why is phosphorous stored in kerosene and not in water or other such liquids ?
WHEN THE CLOTHES OF A PERSON CATCH FIRE,HE SHOULD BE COVERED WITH A BLANKET WHY?
What is the difference between Spontaneous, rapid and explosion type of combustion
why is hydrogen not used as fuel though it has highest calorific value?
why are some materials burn with flame while others without flame?
hope ans by meritnation expert
' Gaseous fuels are better than liquids and solid fuels'. COMMENT.
What is history of matchstick?
Matchsticks are made from 3 substance
Are they all are nonmetal?
which of them make fricition
Flame of burning candle goes off when we blow strongly over it. Why?
a)Which of the following fuels is expected to leave a residue upon burning.
a)coal b)petrol c)LPG
can the process of rusting be called combustion need answer with explanation and if possible give some examples but explation is important
are yaar my teacher doesnt know the answer to this question
What are non-combustible substances? Explain with examples.
why should water not be used to put off fire caused by burning of petrol?
How has the use of CNG in motor vehicles reduced pollution in big cities?Explain
Calorific value of Cowdung is 7000kg. How much cowdung cakes are required to produce heat energy of 35000 J? Explain with steps.
Why are we advised never to sleep in a room with burning coal fire in it?
your LPG gas stove at home is giving a yellow flame. What can this mean?
what is the difference between combustion and burning?
paper by itself catches fire easily whereas a piece of paper wrapped around an aluminium pipe does not
105,000KJ of heat is produced on burning 3.5KG of a fuel completely. Calculate the calorific value of the fuel
In an experiment, on burning 3.5kg of fuel 70,000kj of energy was produced. Determine its calorific value???????????
Why does a matchstick not burn on its own?
what precautions should be taken while using cng fuel in vehicles ? plss fasst i have just 9 hrs
which zone of a flame does a goldsmith use for melting gold and silver and why
What is tilling? What purpose does it serve?
What is slow combustion?
WHY CARBON DIOXIDE IS CONSIDERED AS THE BEST FIRE EXTINGUISHER?
Carbon dioxide is the most commonly used gas for extinguishing a fire. Which properties of carbon dioxide are used here ?
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