Fuel Cells Are Being Developed for Commercial Use That Use

question 75

Multiple Choice

Fuel cells are being developed for commercial use that use hydrogen as a fuel. In these cells, hydrogen combines with oxygen in the air to produce water as the only product. This combination appears to be a perfect source of energy, except hydrogen is highly explosive and challenging to store. The fuel cells produce no waste products because the water essentially is recycled, and the energy is obtained from the sun rather than from fossil fuels. When 1 mol of oxygen gas is ________ in the fuel cell, ________mole(s) of electrons are transferred.

• A) reduced, 1
• B) reduced, 2
• C) oxidized, 2
• D) reduced, 4
• E) oxidized, 4

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Definitions:

Pull Model

A business model in which the production process begins with a customer order and companies make only what customers want, a process closely aligned with mass customization.

Make-to-order

A manufacturing process in which the production of an item begins only after a confirmed customer order is received.

Customer Order

A customer order is an official request made by a customer for a company's goods or services, typically documented and processed for fulfillment.

SCM

Supply Chain Management involves the management and control of materials, information, and financial flows from the supplier through to the manufacturer, then on to the wholesaler and retailer, and ultimately to the consumer.