Page 43 - Pressure 10 class
P. 43
What difference is observed when a balloon filled with air and a balloon
filled with hydrogen gas released?
➢ A hydrogen filled balloon gradually rises up in the sky. It is because the weight
of hydrogen filled balloon is lesser than the weight of air displaced by the
balloon. Since hydrogen is lighter than air. An object that displaces the fluid
more than its own weight gets rises up in the given fluid medium.
But air filled balloon displaces the weight of air lesser than its weight . As
a result, if can’t satisfy the law of floatation and settles down in the ground.
A hydrogen filled balloon gradually rises up in the air and burst on
reaching certain height.
➢ A hydrogen filled balloon gradually rises up in the sky. It is because the
weight of hydrogen filled balloon is lesser than the weight of air
displaced by the balloon. Since hydrogen is lighter than air. An object
that displaces the fluid more than its own weight gets rises up in the
given fluid medium.
As a balloon rises up, it reaches gradually to lower atmospheric
pressure region. As a result, hydrogen gas inside the balloon continuously
exerts outward pressure on the wall of balloon. As a result balloon
gradually gets inflated. And the elastic behavior of balloon ceases at a
point of height. As a result, the balloon get burst.
July 30, 2020 Taranath Baral/GC Shiba/Suraj Thapaliya 43
