Hydrogen Fuel Cells and Energy Conservation

These flashcards cover key concepts related to Hydrogen Fuel Cells, Wind Power, and Energy Conservation, summarizing their pros, cons, and associated technologies.

Hydrogen Fuel Cells (H2)

A technology that converts chemical energy from hydrogen into electricity, with water and heat as byproducts.

Net Energy

The difference between the energy produced and the energy consumed in a process.

2nd Law of Thermodynamics

A principle stating that energy systems tend to move towards a state of increased entropy, implying not all energy can be converted to work.

Pros of Hydrogen Fuel Cells

Minimal carbon emissions and potential to generate hydrogen using solar energy.

Cons of Hydrogen Fuel Cells

Challenges in generating sufficient hydrogen and storing it.

Wind Power Pros

Renewable source of energy with no CO2 emissions, generating extra income for landowners.

Wind Power Cons

Dependent on wind availability, impacts on wildlife, and high starting costs.

NIMBY

A term referring to 'Not In My Back Yard', indicating opposition to developments in one's local area.

Energy Conservation

Efforts to reduce energy consumption and minimize the negative impacts associated with energy extraction and use.

CAFE Standards

Corporate Average Fuel Economy standards requiring automakers to meet specific fuel efficiency benchmarks.

Xeriscaping

Landscaping designed for water conservation, particularly in arid regions, using drought-resistant plants.

Deciduous Trees

Trees that shed their leaves annually, efficient for providing shade and blocking sunlight in different seasons.

Evergreens

Trees that retain their foliage throughout the year.

Military Shower

A method of showering that minimizes water usage, typically involving short bursts of water.