Verified answer

• When the air in a hot balloon is heated to cause increment in its temperature from 25 degree Celsius to 30 degree Celsius at constant pressure the percentage increase in its volume is
• PV=nRT, at constant pressure, V₁/V₂=T₁/T₂
• Per centage increase in volume can be given by : (V₂ - V₁)/V₁ % =

        ((V₂/V₁) - 1 ) %

• V₂/V₁ = T₂/T₁ = 30/25 = 6/5 = 1.2
• Per centage increase = 1.2 -1 % = 0.2 %

Answer:

1.68%

Explanation:

given in the image below