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A balloon vendor at a street fair is using a tank of helium to fill her...
A balloon vendor at a street fair is using a tank of helium to fill her balloons. The tank has a volume of 193.0 L and a pressure of 115.0 atm at 25.0 °C. After a while she notices that the valve has not been closed properly. The pressure had dropped to 105.0 atm. (The tank is still at 25.0 °C.) How many moles of gas has she lost? final volume= 211.38 L
A balloon vendor at a street fair is using a tank of helium to fill her balloons. The tank has a volume of 160.0 L and a pressure of 109.0 atm at 25.0 °C. After a while she notices that the valve has not been closed properly. The pressure had dropped to 99.0 atm. (The tank is still at 25.0 °C.) How many moles of gas has she lost?
A balloon vendor at a street fair is using a tank of helium to fill her balloons. The tank has a volume of 102.0 L and a pressure of 102.0 atm at 23.0 °C. After a while she notices that the valve has not been closed properly. The pressure had dropped to 92.0 atm. (The tank is still at 23.0°C.) How many moles of gas has she lost? mol
05 Question (1 point) See page 289 Aballoon vendor at a street fair is using a tank of helium to fill her balloons. The tank has a volume of 191.0L and a pressure of 128.0 atm at 25.0°C After a while she notices that the valve has not been closed properly. The pressure had dropped to 118.0 atm. (The tank is still at 25.0°C) 1st attempt W See Periodic Table See Hint How many moles of gas has she lost?...
A tank contains 25.0 kg of helium gas at a gauge pressure of 8.00 atm. What is the new gauge pressure after 5.0 kg of helium has been released to fill balloons? Assume the release is slow enough that the tank does not cool down. I am posting this because this question is listed three times on this website with three different answers (1.6 atm, 6.4 atm, and 10.25 atm)! They each say they have the right answer? Please take...
2. A helium balloon with a volume of 1.25L is purchased at a county fair (assume 25°C and 1 atm pressure). The balloon is accidentally released and floats away. It ascends into the upper atmosphere, where the pressure is a lot lower. Before it bursts, the balloon has expanded to a volume of 3.80L. What is the change in entropy as a result of this expansion (ignore any temperature change in the upper atmosphere)? (5 points)
25. You’re at the zoo and have a big red 3.20 L helium balloon. The barometric pressure is 790.0 mm Hg. Then you hear the roar of a lion. Startled, you accidently release the balloon. It flies away. By the time it reaches the clouds the atmospheric pressure is only 0.300 atm. What is the new volume of the balloon? a) 6.20 L b) 11.1 L c) 1.06 L d) 8.43 L 26. A gas sample is held at constant...