a drum completely filled with water is taken from earth to lunar surface. what change in pressure, given by water, at the base of drum takes place? Give reasons.
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4 of the possible answers are listed as follows:
A - It will freeze and remain as ice
B - It will boil, then form a solid
C - It will boil and remain as a vapor
D - It will decompose into Hydrogen and Oxygen molecules
Okay.
D would never be the answer. The construction of the statement is meant to confuse you. Now, molecules can separate or decompose. They mean two different things. Decompose suggests that the structure of the molecule has been compromised and that the element itself—not the ones adjoined to it, are separating. Adjoined molecules undergoing separation are already volatile—but decomposition? Please. On earth, we have an atmosphere that allows a platform for ignition and explosion to occur. In space it takes unimaginable force for a star to die (i.e explode), and a few drops of water do not possess this force. This statement further contradicts itself by introducing the idea that because space is a vacuum that molecules are unstable there. Wrong.
A, B, C I really enjoy this question because of the way the multiple choice is presented. Technically none of them are right, because the order they are presented are missing links or incorrect altogether.
For A, It will freeze, and will remain as ice, however, this does not indicate what happens before it freezes and this is why A is wrong. The point where the water freezes and turns into ice is at the very last moment. Also, this answer simply states ice, not what kind of ice, and this is another reason why it is wrong.
For C, It will boil, and it will turn into vapor, but it will not remain this way, and that is what makes C wrong.
B is the most favorable answer because it will boil and will form a solid—except not a bottle or spilled water shaped solid.
See as soon as the water comes in contact with the vacuum of space, it will boil. When this happens the water will transform into vapor. Vapor freezes at a much higher rate than water in its liquid state, and because this is in a vacuum, all of the vapor molecules are in the same space (not free floating radicals like we see when steam rises out of a kettle—our atmosphere is responsible for steam and water vapor disappearing so quickly) and because the water has been reduced to vapor, it solidifies into crystalline ice structures or tiny tiny vapor molecules frozen in a matter of nano-seconds.
It is arguable that because of the composition of the statements to be regarded as possible answers that A-D are unfit to be considered such, but I have given you the answer so here is a revised statement:
It will boil, turn to vapor, freeze, then form a solid (crystalline ice structure.)
A - It will freeze and remain as ice
B - It will boil, then form a solid
C - It will boil and remain as a vapor
D - It will decompose into Hydrogen and Oxygen molecules
Okay.
D would never be the answer. The construction of the statement is meant to confuse you. Now, molecules can separate or decompose. They mean two different things. Decompose suggests that the structure of the molecule has been compromised and that the element itself—not the ones adjoined to it, are separating. Adjoined molecules undergoing separation are already volatile—but decomposition? Please. On earth, we have an atmosphere that allows a platform for ignition and explosion to occur. In space it takes unimaginable force for a star to die (i.e explode), and a few drops of water do not possess this force. This statement further contradicts itself by introducing the idea that because space is a vacuum that molecules are unstable there. Wrong.
A, B, C I really enjoy this question because of the way the multiple choice is presented. Technically none of them are right, because the order they are presented are missing links or incorrect altogether.
For A, It will freeze, and will remain as ice, however, this does not indicate what happens before it freezes and this is why A is wrong. The point where the water freezes and turns into ice is at the very last moment. Also, this answer simply states ice, not what kind of ice, and this is another reason why it is wrong.
For C, It will boil, and it will turn into vapor, but it will not remain this way, and that is what makes C wrong.
B is the most favorable answer because it will boil and will form a solid—except not a bottle or spilled water shaped solid.
See as soon as the water comes in contact with the vacuum of space, it will boil. When this happens the water will transform into vapor. Vapor freezes at a much higher rate than water in its liquid state, and because this is in a vacuum, all of the vapor molecules are in the same space (not free floating radicals like we see when steam rises out of a kettle—our atmosphere is responsible for steam and water vapor disappearing so quickly) and because the water has been reduced to vapor, it solidifies into crystalline ice structures or tiny tiny vapor molecules frozen in a matter of nano-seconds.
It is arguable that because of the composition of the statements to be regarded as possible answers that A-D are unfit to be considered such, but I have given you the answer so here is a revised statement:
It will boil, turn to vapor, freeze, then form a solid (crystalline ice structure.)
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