据快播百科网站「糖不及你甜」消息，近日，火多少度，火多少度算正常同样引起许多争议，对此众网友各抒己见。

火多少度

不同材质的物质，引燃的火焰温度是不一样的，例如打火机300-500度；纸张200度；炉火800度；火柴点燃时最高温度1000-2000度，燃烧时低点470度；酒精灯600-700度；煤气灯/酒精喷灯800-2500度；氢氧焰/氧炔焰2500-3000度等。

火焰颜色与温度的关系：

火焰的实质是高温的气态或等离子态的物质。有两种因素决定火焰的颜色。一是火焰的温度决定火焰的颜色，火焰是一种反应。低温的时候是红外线，随着温度的上升，火焰从红色橙色（３０００度）到黄色白色（４０００度）到青色蓝色（５０００～６０００度）到紫色（７０００以上）到最后看不见的紫外线（几万度），颜色在不断改变。从高能物理来说，红外线，有色光谱段的火焰都是低能量的火焰，温度继续高下去，火焰的颜色从紫外线到ｘ线到伽马线等等，这些都是无法形容的“颜色”。二是气态和等离子态物质的元素构成决定火焰的固有光谱，元素表的每种元素高温下都会发出自己特定的光色，常见的比如钠会出现黄色，钾是紫色，铜是绿色，化合物的光色是一种杂色，因为有许多种类的元素在发光。这也就是各种火焰的颜色不一样的缘故。

【英文介绍/For English】：

Different materials have different flame temperatures, such as lighters at 300-500 degrees; paper at 200 degrees; furnace fire at 800 degrees; matches have a maximum temperature of 1000-2000 degrees when ignited, and a low point of 470 degrees when burning; alcohol lamps 600-700 degrees; gas lamp/alcohol blowtorch 800-2500 degrees; oxyhydrogen flame/oxyacetylene flame 2500-3000 degrees, etc.

The relationship between flame color and temperature:

The essence of the flame is a high temperature gaseous or plasma substance. There are two factors that determine the color of the flame. One is that the temperature of the flame determines the color of the flame, and the flame is a reaction. When the temperature is low, it is infrared. As the temperature rises, the flame changes from red-orange (3000 degrees) to yellow-white (4000 degrees) to cyan blue (5000-6000 degrees) to purple (above 7000) to the last invisible ultraviolet ( tens of thousands of degrees), the color is constantly changing. In terms of high-energy physics, the flames in the infrared and colored spectrum are all low-energy flames. The temperature continues to rise, and the color of the flame ranges from ultraviolet to X-ray to gamma-ray, etc. These are indescribable "colors". The second is that the elemental composition of gaseous and plasma substances determines the inherent spectrum of the flame. Each element in the element table will emit its own specific light color at high temperature. Common ones such as sodium will appear yellow, potassium is purple, copper is green, and compounds of Light color is a variegated color because there are many kinds of elements emitting light. This is why the colors of various flames are different.

火多少度算正常

正常成年人体温范围通常为36.1°C到37.2°C，但这个范围可能因年龄、性别、运动水平、妊娠、时间和其他因素而略有差异。有些人的正常体温可能高于或低于这个范围，因此最好根据自己的基准体温范围来判断是否有发热。

一般情况下，体温超过37.5°C算发热。如果体温超过38°C，则称为轻度发热。如果体温超过39°C，则称为中度发热。高度发热指体温超过40°C。

体温升高可能是身体对感染、炎症、药物或其他问题做出的正常反应。但是，在某些情况下，体温过高可能是一种严重的疾病标志，需要寻求医疗帮助。