A spherical balloon of 21 cm diameter is to be filled up with at NTP from a cylinder…

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Problem

A spherical balloon of 21 cm diameter is to be filled up with

H_2

at NTP from a cylinder containing the gas at 20 atm at 27°C. The cylinder can hold 2.82 litre of water at NTP. Calculate the number of balloons that can be filled up.

Related theory

Ideal Gas Equation
Gaseous State
States of Matter
Combined gas equation
Mole concept
Some Basic Concepts of Chemistry
Gay Lussac's Law of Gaseous Volumes

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