ThermodynamicsMedium
Question
A balloon containing an ideal gas has a volume of 10 liter and temperature of 17oC. If it is heated slowly to 75oC, the work done by the gas inside the balloon is (neglect elasticity of the balloon and take atmospheric pressure as 105 Pa)
Options
A.100 J
B.200 J
C.250 J
D.data insufficient
Solution
Since elasticity of balloon is negligible ∴ pressure inside balloon pressure outside balloon = Patm.
∴ W = Patm ᐃV
Vin = 10 litre.
⇒ Vfinal = 
ltre. ⇒ W = Patm Vin 
⇒ 105 × 10-2
= 200 J
∴ W = Patm ᐃV
Vin = 10 litre.
⇒ Vfinal = ltre. ⇒ W = Patm Vin ⇒ 105 × 10-2 = 200 JCreate a free account to view solution
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