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.
Quick Answer. Natural gas is measured in cubic feet, cubic meters, British thermal units or joules, while gasoline is measured in gallons, British thermal units, joules or metric tons. The unit used to measure gas is dependent upon the situation in which the gas is being used.
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).