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Question 6 Assuming a filament in 100 W light bulb acts as a perfect blackbody, what is the temperature (in °C) of the hottest portion of the filament if it has a surface area of 6.3 x 10-0 m2? The Stefan- Boltzmann constant is 5.67 x 10-8 wi(m2 · K4).
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Transcribed Image Text:Question 6 Assuming a filament in 100 W light bulb acts as a perfect blackbody, what is the temperature (in °C) of the hottest portion of the filament if it has a surface area of 6.3 x 10-0 m2? The Stefan- Boltzmann constant is 5.67 x 10-8 wi(m2 · K4).
Question 5 The temperature of an ideal gas in a sealed 0.40-m rigid container is reduced from 350 K to 270 K. The final pressure of the gas is 60KPA The molar heat capacity at constant volume of the gas is 28.0 J/mol K. How much heat (in J) is absorbed by the gas?
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Transcribed Image Text:Question 5 The temperature of an ideal gas in a sealed 0.40-m rigid container is reduced from 350 K to 270 K. The final pressure of the gas is 60KPA The molar heat capacity at constant volume of the gas is 28.0 J/mol K. How much heat (in J) is absorbed by the gas?
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