Answer:
The minimum volume of hot air needed to lift the hot air balloon is 653.06m³
Step-by-step explanation:
Density is defined as the ratio of the mass of a substance to its unit volume.
Density = Mass/Volume
Given mass of balloon = 800kg
Density of air = 1.225 kg/m3 {standard value}
Volume = Mass/Density
Volume = 800/1.225
Volume = 653.06m³
The minimum volume of hot air needed to lift the hot air balloon is 653.06m³
