For a perfectly competitive firm with no market control, the marginal revenue curve is a horizontal line. Because a perfectly competitive firm is a price taker and faces a horizontal demand curve, its marginal revenue curve is also horizontal and coincides with its average revenue (and demand) curve.Yes-what you must remember is that a firm's demand curve in perfect competition is its average revenue curve.Average revenue = price x quantity / quantity = price. The demand curve shows the quantity demanded at varying prices and this is exactly what the average revenue curve will do. Answer   Because for a perfectly competetive firm since the demand curve is perfectly elastic even a slightest price change doesnt add any further demand..so there â¦ is no change in marinal revenue also.Since revenue is demand multiplied with cost of unit..the two curves are same. + 1 other found this useful.
Natural gas can be measured in a variety of ways, although the most common unit of measurement is the Gigajoule (GJ), which signifies one billion joules, the metric measure for heat or energy. Other measures are Mcf (thousand cubic feet) and Btu (British Thermal Unit).
Natural gas use is measured by volume in units of 100 cubic feet (ccf). For billing, ccf is converted into therms, a measure of heat content. One therm equals 100,000 British thermal units (Btu). One therm of natural gas is also roughly equal to one ccf. Operating Cost Calculation. Most natural gas appliance ratings are expressed as Btu per hour (Btuh). This rating indicates the amount of energy required (input) or energy produced (output) by the unit. Such information can be found on the appliance nameplate or in the ownerâs manual.