a soap bubbles of 8cm diameter containing air at 27 and 760mm pressure expanded until the radius is 8cm, the temperature and pressure remaining constant. how many cc of air at NTP are required for the expansion.
Answer (1)
21st Jan, 2021
Hello candidate,
Given that the initial radius which is the half of the initial diameter is equal to 4 cm. Provided that the soap bubble is expanded under normal temperature and pressure conditions, the new radius is equal to 8 cm.
The volume of a spherical bubble is given by the formula 4/3×π×R3. So, the expansion in volume of soap bubble is equal to, 4/3×π× (8^3- 4^3)= 1877.33 cm3.
Hope that this answer was helpful!!
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