Air Compression and Expansion
{"Image DocumentName": "Air Compression and Expansion", "Image ImageDescription": "Expansion and Cooling. As you travel from Earth\u2019s surface upward through the atmosphere, the atmospheric pressure decreases. This happens because there are fewer and fewer gas molecules. Any time a volume of air moves upward, it passes through regions of successively lower pressure. As altitude increases, the air expands and cools.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}