A Hot Air Balloon Has a Volume of 2

question 57

Multiple Choice

A hot air balloon has a volume of 2.00 × 10³ m³ when fully inflated,and the air inside the balloon is always at atmospheric pressure of 1.01 × 10⁵ Pa because of the large opening used to fill the balloon and heat the air inside it.What is the mass of hot air inside the balloon if its temperature is 120°C? The universal gas constant is 8.314 J/mol • K.(Assume a molecular weight of 28.8 g/mol for air.)

• A) 1780 kg
• B) 5850 kg
• C) 203 kg
• D) 62.0 kg

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Payment or reward given for services or to make up for someone's loss, damage, or injury.

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