Here is the answer for the question – **The mass of a hot-air balloon and its cargo (not including the air inside) is 200 kg. The air outside is at a temperature of 10C and a pressure of 1 atm = 105 N/m2. The volume of the balloon is 400 m3. Which temperature below of the air in the balloon will allow the balloon to just lift off? (Air density at 10C is 1.25 kg/m3.)**. You’ll find the correct answer below

### The mass of a hot-air balloon and its cargo (not including the air inside) is 200 kg. The air outside is at a temperature of 10C and a pressure of 1 atm = 105 N/m2. The volume of the balloon is 400 m3. Which temperature below of the air in the balloon will allow the balloon to just lift off? (Air density at 10C is 1.25 kg/m3.)

**The Correct Answer is**

**200C**

### Reason Explained

200C is correct for The mass of a hot-air balloon and its cargo (not including the air inside) is 200 kg. The air outside is at a temperature of 10C and a pressure of 1 atm = 105 N/m2. The volume of the balloon is 400 m3. Which temperature below of the air in the balloon will allow the balloon to just lift off? (Air density at 10C is 1.25 kg/m3.)

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- The mass of a hot-air balloon and its cargo (not including the air inside) is 200 kg. The air outside is at a temperature of 10C and a pressure of 1 atm = 105 N/m2. The volume of the balloon is 400 m3. Which temperature below of the air in the balloon will allow the balloon to just lift off? (Air density at 10C is 1.25 kg/m3.) - March 14, 2023
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