Question

Ignition temperature of a piece of coal in Chennai is 60°C. What will be the ignition temperature of
the same coal in a cold city like Shimla?
(A) Less than 60°C
(B) More than 60°C
(C) 60 °C​

Answer 1

more than 60. c same coal in a cold city like shimla

Answer 2

Answer:

The ignition temperature of the coal in a cold city like Shimla will be less than 60°C as Shimla is at a higher altitude compared to Chennai. i.e.option(A).

Explanation:

• The minimal temperature needed to initiate or cause combustion is known as the ignition temperature of a substance.
• The ignition point is another name for the ignition temperature.
• It is the temperature at which anything can ignite and begin to burn.
• However, because it is dependent on a number of other elements, such as oxygen, partial pressure, particle size, the pace of heating, and a particle's thermal environment, the ignition temperature of the fuel is not always a character that is unique to that fuel.
• With the increase in pressure ignition temperature also increases and vice-versa.
• With the increase in height, the atmospheric pressure decreases.
• So,  the ignition temperature of the coal in a cold city like Shimla will be less than 60°C as Shimla is at a higher altitude compared to Chennai.

Hence, the correct answer among the given option is (A) i.e.less than 60°C.

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