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WHAT IS THE FULL FORM OF CNG AND LPG ?????????
name two solid fuels,two liquid fuels and two gasious fuel
list out 10 combustible materials and 10 non combustible materials
Carbon dioxide is the most commonly used gas for extinguishing a fire. Which properties of carbon dioxide are used here ?
What is S.I unit of calorific value?
why hydrogen not used as a fuel ?
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
Is rusting of iron a combustion process ?
oxygen, nitrogen, carbondioxide, carbon monoxide--------which is odd one out and why
what is ideal fuel?
WHY DO WE WRAP A BLANKET AROUND A PERSON WHOSE CLOTHES CAUGHT FIRE
water,glass and cement are which type of substances
What is rapid combustion?Give examples.
how is cough formed in our body?????
list some characteristics of an ideal feul?
what is the difference between combustible and inflammable substances?
how many types of combustion are there explain them
difference between rapid combustion , spontaneous combustion and explosion
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
distinguish between combustible and non combustible substances ,giving three examples of each
WHY WOOD SHAVINGS BURN MORE EASILY THAN A LOG WOOD?
all combustible substance are not fuel. Why??
why do you have to use paper or kerosene oil to start fire in wood or coal
some judicious use of fossil fuels.
what is ideal fuel.
on what factor the calorific value of a fuel depends?
What are inert gases?give some examples?
Suppose you are asked to boil a given quantiity of water using cow dung cake, coal and LPG as fuels. Which fuel would you prefer? Give your reason.
Why does a goldsmith blow the outermost zone of a flame with metallic blowpipe for melting gold and silver?
what's the advantage of fish having a streamlined body ?
give 3 conditions which are necessary for combustion?
What is the difference between luminous and non- luminous zones and what is the difference between inflammable and flammable substances ?
Green leaves do not burn easily while dry leaves catch fire easily.Explain.
what is mean by room temrature
Is LPG a better domestic fuel than wood and why ?
NAME ONE FUEL WHICH BURNS WITHOUT GIVING OFF WATER VAPOUR? AND WHY?
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?
What is calorific value ?
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 DOES A MATCHSTICK BURN ON RUBBING IT ON THE SIDE OF THE MATCHBOX
WHEN THE CLOTHES OF A PERSON CATCH FIRE,HE SHOULD BE COVERED WITH A BLANKET WHY?
why is hydrogen not used as fuel though it has highest calorific value?
' Gaseous fuels are better than liquids and solid fuels'. COMMENT.
Why do forest fire occurs during hot summers?
Write an Activity - To study Ignition Temperature Using Paper Cup .
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?
what is meaning of kJ/g?
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
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
Camphor burns with a flame. Charcoal does not. Why?
What is the difference between Spontaneous, rapid and explosion type of combustion
Flame of burning candle goes off when we blow strongly over it. Why?
What are non-combustible substances? Explain with examples.
why should water not be used to put off fire caused by burning of petrol?
your LPG gas stove at home is giving a yellow flame. What can this mean?
Q88)What are the fine particles released on burning carbon-containing fuels called?
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
be my friends on orkut::
why does the paper cup containing water not catch fire on heating ?
Why does spontaneous combustion occur in some substances?
what precautions should be taken while using cng fuel in vehicles ? plss fasst i have just 9 hrs
Sodium is stored under kerosene or water ?
why are some materials burn with flame while others without flame?
hope ans by meritnation expert
tell me the parts of a burning flame of candle
which zone of a flame does a goldsmith use for melting gold and silver and why
what do you mean by combustion
What is tilling? What purpose does it serve?
list out 10 combustible materials and 10 non combustible material from the kitchen
What is slow combustion?
which fuels is used in jet planes?
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