Subject: Chemistry
Book: General Chemistry
Fuel cells generate electricity by combining hydrogen (or other fuels) and oxygen electrochemically, producing water and heat. Proton exchange membrane (PEM) fuel cells are prominent in transportation, offering high efficiency and zero emissions if hydrogen is from renewable sources. Challenges include catalyst costs (often platinum) and hydrogen storage. Fuel cells are a key technology in the transition to cleaner energy systems.
What is the chemical formula of table salt?
View QuestionWhat is the pH value of pure water?
View QuestionWhich element is used in the production of rust?
View QuestionWhich element has the atomic number 79?
View QuestionWhat is the chemical formula for ethanol?
View QuestionWhat is the chemical formula of carbon dioxide?
View QuestionWhich element is represented by the symbol 'Si'?
View QuestionWhich element is represented by the symbol 'Cl'?
View QuestionWhich element is used in thermometers?
View QuestionWhich element is represented by the symbol 'K'?
View Question