Colleges/universities with over 2000 students nearest to Souderton: 1  Delaware Valley College (about 9 miles; Doylestown, PA; Full-time enrollment: 2,025). 2  Gwynedd Mercy University (about 9 miles; Gwynedd Valley, PA; FT enrollment: 2,125).
It seems impossible that a gallon of gasoline, which weighs about 6.3 pounds, could produce 20 pounds of carbon dioxide (CO2) when burned. However, most of the weight of the CO2 doesn't come from the gasoline itself, but the oxygen in the air. When gasoline burns, the carbon and hydrogen separate.
Natural gas in the US is measured in CCF (100 cubic feet), which is converted to a standardized heat content unit called the therm, equal to 100,000 British thermal units (BTU). A BTU is the energy required to raise one pound of water by one degree Fahrenheit. A US gallon of water weighs 8.3 pounds (3.8 kg). So, to raise 60-gallon worth of 40 Â°C (104 Â°F) water up to 50 Â°C (122 Â°F) would require 60 Ã 8.3 Ã (122 â 50) = 35856 BTU, or approximately 0.359 CCF (35856/100,000), at 88% efficiency.