When the atmospheric pressure is 1.013 × 105Pa, the boiling point of liquid nitrogen is - 195.8 ℃, the boiling point of liquid oxygen is - 183 ℃, the boiling point of liquid helium is - 219 ℃, and the boiling point of liquid carbon dioxide is - 78.44 ℃. When the liquid air is separated, the sequence of the above gases separated with the increase of temperature is () A. Nitrogen, oxygen, helium, carbon dioxide B. helium, nitrogen, oxygen, carbon dioxide C. carbon dioxide, oxygen, helium, nitrogen D. helium, carbon dioxide, oxygen, helium

When the atmospheric pressure is 1.013 × 105Pa, the boiling point of liquid nitrogen is - 195.8 ℃, the boiling point of liquid oxygen is - 183 ℃, the boiling point of liquid helium is - 219 ℃, and the boiling point of liquid carbon dioxide is - 78.44 ℃. When the liquid air is separated, the sequence of the above gases separated with the increase of temperature is () A. Nitrogen, oxygen, helium, carbon dioxide B. helium, nitrogen, oxygen, carbon dioxide C. carbon dioxide, oxygen, helium, nitrogen D. helium, carbon dioxide, oxygen, helium

According to the boiling points of several gases, the lowest boiling point is liquid helium, which is separated first, followed by nitrogen, oxygen and carbon dioxide. Therefore, B is correct, a, C and D are wrong

It is reported that China's Long March 2F carrier rocket will send shenzhou-10 spacecraft into space in mid June. During the ascent of the rocket, the surface temperature of its head will rise sharply. Please explain why with your physical knowledge?

In the process of rocket rising, it is necessary to overcome the air friction to increase the internal energy and temperature of the rocket head surface

On October 15, 2003, the Shenzhou-5 spacecraft launched the first Chinese space flight
(1) The fuel and oxidant in rocket are (solid, liquid or vapor) state. It is liquefied by both (solid) and pressure
(2) After the rocket is ignited, if the tail flame is sprayed directly on the launch pad, the launch pad will melt. In order to protect the launch pad, a large pool is built at the bottom of the launch pad to spray the flame into the water spurs. The reason is that the surrounding temperature is not too high. We can see that a large amount of "white gas" around the rocket just ignited is formed by water first () and then ()
Please also give an example of using the change of state of matter to adjust the ambient temperature in production technology or life: ()
(3) When the spaceship returns to the atmosphere, the surface temperature of the hull is very high due to the high-speed friction with the air. In order to prevent the spaceship from burning, scientists put a layer of special material (called "burning layer") on the surface of the flying wound, and the coating material will not rise too high at high temperature

Liquid cooling specific heat capacity is large & nbsp; vaporization liquefaction & nbsp; & nbsp; water evaporation endothermic liquefaction endothermic