Saturday, July 16, 2011
Incandescent lightbulbs are filled with an inert gas to lengthen the filament life?
Incandescent lightbulbs are filled with an inert gas to lengthen the filament life. With the current off (at T = 20.0� C), the gas inside a lightbulb has a pressure of 115 kPa. When the bulb is burning, the temperature rises to 79.0� C. What is the pressure at the higher temperature?
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