Question

Assume that the pressure inside of the 1 liter balloon is 200,000 Pa, what is the explosive energy in the inside the balloon? Express your answer in joules and pounds of TNT (2.1 x 106 J = 1 lb of TNT).

Answer 1

200 Joules is the explosive energy in the inside the balloon. And that is
`9.523* 10^(-5)`1 lb of TNT.

Step-by-step explanation:

`Pressure=(force)/(Area)=(Force* distance)/(Area * distance)=(Energy)/(Volume)`

Volume of the balloon = V = 1 L =
`0.001 m^3`

Pressure inside the balloon ,P= 200,000 Pa =
`200,000 N/m^2`

Explosive energy in the inside the balloon be E.

E = Pressure × Volume

`E=200,000 N/m^2* 0.001 m^3=200 Joules`

1 lb of TNT =
`2.1* 10^6 J`

200 Joules =
`200* (1)/(2.1* 10^6 )`1 lb of TNT

=
`9.523* 10^(-5)`1 lb of TNT