Multiple Choice
Which product is most commonly formed during the combustion of coal to produce energy?
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3. Chemical Reactions
Combustion Analysis
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Which term refers to the minimum temperature at which a substance will undergo sustained combustion?
A
Melting point
B
Boiling point
C
Critical temperature
D
Ignition temperature
Verified step by step guidance1
Understand the meaning of each term given in the options: Melting point is the temperature at which a solid turns into a liquid.
Boiling point is the temperature at which a liquid turns into a gas under atmospheric pressure.
Critical temperature is the highest temperature at which a substance can exist as a liquid, regardless of pressure.
Ignition temperature (or ignition point) is the minimum temperature at which a substance will catch fire and sustain combustion without an external flame or spark.
Therefore, the term that refers to the minimum temperature for sustained combustion is the ignition temperature.
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