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Man-Made Disasters

should the te...

Question

should the temperature of a combstible substance be lower or higher than its ignition temperature to catch fire?

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Solution

Ignition temperature is the minimum temperature at which a substance catches fire. Therefore if the temperature is equal to or more than ignition temperature then a substance will catch fire.
Hence the temperature of any combustible substance should me equal to or more than its ignition temperature to catch fire.

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(a) A chemical process in which a substance reacts with oxygen to give off heat is called ______.
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Q. Question 26
Fill in the blanks using the words given in the box.

(a) A chemical process in which a substance reacts with oxygen to give off heat is called ___
(b) Wood, paper, CNG are ___ substances.
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(d) Ignition temperature of ___ is lower than that of wood.
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Q. Question 16
Fill in the blanks in the following sentences.
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