Two sealed containers 'A' and 'B' are taken to outer space where there is neither gravity nor atmosphere. Container 'A' is filled with water and container 'B' is filled with air. Choose the correct observation(s)?
Two sealed containers 'A' and 'B' are taken to outer space where there is neither gravity nor atmosphere. Container 'A' is filled with water and container 'B' is filled with air. Choose the correct observation(s)?
The correct options are
B Pressure inside container 'A' will become zero.
C Pressure inside container 'B' will remain intact.
In a liquid, the pressure at a point is due to the weight of the liquid overlying a unit area. At a place where gravity is zero, the weight of overlying liquid will also be zero and hence the pressure will be zero at all points. In case of gases the pressure is due to the random motion that the gas molecules exhibit. So, they would not be affected by the presence or absence of gravity. Secondly, the container is sealed, so the pressure inside is also not affected by any change in the external atmospheric pressure.
B
Pressure inside container 'A' will become zero.
C
Pressure inside container 'B' will remain intact.
In a liquid, the pressure at a point is due to the weight of the liquid overlying a unit area. At a place where gravity is zero, the weight of overlying liquid will also be zero and hence the pressure will be zero at all points. In case of gases the pressure is due to the random motion that the gas molecules exhibit. So, they would not be affected by the presence or absence of gravity. Secondly, the container is sealed, so the pressure inside is also not affected by any change in the external atmospheric pressure.
