Because a competitive firm's marginal revenue is equal to the market price, the competitive firm's demand curve, which is just a horizontal line at the market price, is also the firm's marginal revenue curve.ecause a competitive firm's marginal revenue is equal to the market price, the competitive firm's demand curve, which is just a horizontal line at the market price, is also the firm's marginal revenue curve.
MMBTU â One million British Thermal Units or BTUs. Natural gas is generally bought and sold in MMBTUs and future prices are generally quoted in this unit of measure. Therm â 1 Therm = 100,000 BTUs. SCF â Standard Cubic Foot is one cubic foot of gas at standard temperature and pressure (60 degrees F and sea level).
While propane is usually measured in gallons (or liters), natural gas is found in cubic feet (or cubic meters). Heat is measured in British Thermal Units (BTUs), which is the amount of heat needed to increase the temperature of 1 pound (0.5 kg) of water by 1Â°F (0.56Â°C).