【Daily Question】20150820 Knowledge related to coal carbonization (2 wealth points for replies + additional 3 wealth points for correct answers)
Thread Content
This post was last edited by Zaza Ya on 2015-8-24 at 22:32. In order to increase popularity in the boiler area and meet the requirements of the region, the \"One Question per Day\" activity is launched to foster technical exchanges, liven up the atmosphere, and offer rewards; all members are welcome to participate actively. The greater the degree of carbonization of coal, that is, the higher its carbon content, the easier it is for it to catch fire and burn. ( ) Reply in the comments with the answer you think is correct (for true/false questions, an additional 3 points will be given for a correct response). 1. Participating in answering questions + 2 wealth points (wealth is added automatically) ； 2. No additional points will be given for incorrect answers; comments will provide the correct answer for reference ； 3. +3 points to wealth if the answer given is correct ； 4. When responding, provide a detailed explanation and analysis of the question or answer; depending on the quality of the response, an additional reward of 3 to 15 points in wealth will be given ； 5. Replies with correct answers and accurate explanations will be designated as the best reply (best assistance). Note: We will close this post after 72 hours to reveal the answers and explanations, as well as the best response (the best help provided).
Wrong; the more volatile matter there is, the easier it is for ignition to occur. The higher the carbon content, the greater the degree of carbonization, and the harder it is to catch fire
The greater the degree of carbonization of coal, that is, the higher its carbon content, the easier it is for it to catch fire and burn. ( X )
The greater the degree of carbonization of coal, that is, the higher its carbon content, the easier it is for it to catch fire and burn. ( X )
The greater the degree of carbonization of coal, that is, the higher its carbon content, the easier it is for it to catch fire and burn. ( Wrong )
The answer is: Wrong； Due to the burning characteristics of carbon: it is difficult to ignite, burns slowly, and carbon itself can burn only at relatively high temperatures. Therefore, the deeper the carbonization degree of coal, that is, the higher its carbon content, the more difficult it is for it to catch fire and burn
The greater the degree of carbonization of coal, that is, the higher its carbon content, the easier it is for it to catch fire and burn. (Mistake)
The greater the degree of carbonization of coal, that is, the higher its carbon content, the easier it is for it to catch fire and burn. ( X )
The greater the degree of carbonization of coal, that is, the higher its carbon content, the easier it is for it to catch fire and burn. Incorrect. Reason: Carbon is the main combustible element in coal, as well as its most fundamental component; its content accounts for approximately 40% to 85%. The burning characteristic of carbon is that it is difficult to ignite, burns slowly, and has a short flame. The greater the degree of carbonization of coal, that is, the higher its carbon content, the more difficult it is to ignite and burn.