科學問題求最快的幫助

By used the internet find out the function of air hole of a bunsen burner and explain why it should be closed before lighting the bunsen burner

通過互聯網找到本生燈的空氣孔的功能，並解釋為什麼使用它之前，應關閉



The amount of air mixed with the gas stream affects the completeness of the combustion reaction. Less air yields an incomplete and thus cooler reaction, while a gas stream well mixed with air provides oxygen in an equimolar amount and thus a complete and hotter reaction. The air flow can be controlled by opening or closing the slot openings at the base of the barrel, similar in function to the choke in a carburettor.

Increasing the amount of fuel gas flow through the tube by opening the needle valve will increase the size of the flame.

可能有錯誤