The reaction between hydrogen and oxygen can be expressed as 2H₂+O₂→2H₂O. In this reaction, the role of oxygen is___. A. oxidizing agent B. reducing agent C. catalyst D. inert substance 相关知识点: 试题来源: 解析 A。在这个反应中,氧气是氧化剂,氢气是还原剂。氧化剂在反应中得...
This chapter explains the sensitization and inhibition of the hydrogen–oxygen reaction by additives and the role of NO in the explosive reaction of hydrogen and oxygen. The inhibiting effect of NO2 implies that NO2 undergoes a reaction, which destroys H atoms, and in this way counteracts the ...
In the reaction between hydrogen and oxygen to form water, hydrogen is ___. A. oxidiz
Taking a hydrogen and oxygen reaction in a PEM fuel cell producing liquid water as an example (as in Eq. 1.1) to calculate the standard molar reaction enthalpy of 1 mol hydrogen: (1.8)dHr0=Hf,H2O(l)0−Hf,H20−12Hf,O20=−285.85kJmol−1where dHr0 is the standard molar ...
... be made up of = be composed of… : 由…组成hydrogen and oxygen:氢和氧understanding and forgiving: 理解和原谅 ... tw.knowledge.yahoo.com|基于4个网页 2. 氢与氧 无机化学 ...氢与氧(Hydrogen and oxygen) 水之氧化还原反应( Redox reactions of water) ... ...
The reaction between hydrogen and oxygen to form water is a ___ reaction. A. chemical B. physical C. biological D. geological 相关知识点: 试题来源: 解析 A。氢气和氧气反应生成水是化学变化。B 选项 physical 是物理变化;C 选项 biological 是生物变化;D 选项 geological 是地质变化,都不符合题意...
Hydrogen is flammable, as this shows, but an uncontrolled reaction of hydrogen and oxygen in the operation of an FCEV is virtually impossible. This is because, in hydrogen fuel cell cars, the hydrogen is stored in liquid form in thick-walled tanks that are particularly safe. As Rücker ...
The train uses a combination of hydrogen fuel cells and supercapacitors to replace the original catenary power supply scheme. The energy is generated by the electrochemical reaction of hydrogen and oxygen in the hydrogen fuel cells. Freed from the shackles of catenary operating conditions, the train...
Low-cost alkaline water electrolysis has been considered a sustainable approach to producing hydrogen using renewable energy inputs, but preventing hydrogen/oxygen mixing and efficiently using the instable renewable energy are challenging. Here, using ni
Here we employ a library of protic ionic liquids in an interfacial layer on platinum and gold to alter local proton activity, where the intrinsic oxygen-reduction reaction (ORR) activity is enhanced up to fivefold, exhibiting a volcano-shaped dependence on the pKa of the ionic liquid. The ...