Joey is holding a party balloon filled with helium, and the helium has the same temperature 80°F and pressure 0.95 atm as the air outside. The balloon is approximately spherical with diameter roughly 20 cm. Throughout the day, the air outside slowly drops to 60°F but its pressure remains the same, and therefore so does the pressure inside the balloon whose size naturally adjusts so that the pressure inside and outside are very nearly the same. What is the change (in Joules) in thermal energy of the air in the balloon?
Joey is holding a party balloon filled with helium, and the helium has the same temperature 80°F and pressure 0.95 atm as the air outside. The balloon is approximately spherical with diameter roughly 20 cm. Throughout the day, the air outside slowly drops to 60°F but its pressure remains the same, and therefore so does the pressure inside the balloon whose size naturally adjusts so that the pressure inside and outside are very nearly the same. What is the change (in Joules) in thermal energy of the air in the balloon?
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Joey is holding a party balloon filled with helium, and the helium has the same temperature
80°F and pressure 0.95 atm as the air outside. The balloon is approximately spherical with
diameter roughly 20 cm. Throughout the day, the air outside slowly drops to 60°F but its
pressure remains the same, and therefore so does the pressure inside the balloon whose size
naturally adjusts so that the pressure inside and outside are very nearly the same. What is the
change (in Joules) in thermal energy of the air in the balloon?
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