Question

A helium-filled weather balloon is held at ground level. The volume of the balloon is 4800 m3
.
The pressure of the helium is 98 kPa.
The balloon is released and rises to a height where the volume of the balloon is 7200 m3
.
(i) Calculate the new pressure of the helium. Assume that the temperature stays constant.
pressure = ................................................................. [2]
Suggest why it may be necessary to release helium from the balloon as it rises even
higher.

Answer 1

Answer:

Explanation:

Here,

P1 = 98000

P2 = 7200

V1 = 4800

V2 =?

Now,

P1V1 = P2V2

98,000 × 4800 = 7200 × V2

V2 = \frac{98000 \times 4800}{7200}  

V2 = 65,333.3

Therefore,

Pressure = 65,333.3 pa

Answer 2

Answer:

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