Nick opens a 2-liter bottle of coke at a picnic. If the cap is left off the bottle, the coke will become 'flat' or lose its carbonation. Which statement below BEST summarizes why the cap must be kept tightly in place if the coke is to remain fresh? A.The cap prevents the liquid in the cola from evaporating. B. The cap keeps the atmospheric gases and liquid from mixing in the bottle. C. The cap keeps warm air from entering the two-liter bottle and raising the temperature of the cola solution. D. The cap keeps the pressure of the gas in the bottle at a high level preventing carbon dioxide from leaving the solution.
Fluid Pressure
The term fluid pressure is coined as, the measurement of the force per unit area of a given surface of a closed container. It is a branch of physics that helps to study the properties of fluid under various conditions of force.
Gauge Pressure
Pressure is the physical force acting per unit area on a body; the applied force is perpendicular to the surface of the object per unit area. The air around us at sea level exerts a pressure (atmospheric pressure) of about 14.7 psi but this doesn’t seem to bother anyone as the bodily fluids are constantly pushing outwards with the same force but if one swims down into the ocean a few feet below the surface one can notice the difference, there is increased pressure on the eardrum, this is due to an increase in hydrostatic pressure.
Nick opens a 2-liter bottle of coke at a picnic. If the cap is left off the bottle, the coke will become 'flat' or lose its carbonation. Which statement below BEST summarizes why the cap must be kept tightly in place if the coke is to remain fresh?
A.The cap prevents the liquid in the cola from evaporating.
B. The cap keeps the atmospheric gases and liquid from mixing in the bottle.
C. The cap keeps warm air from entering the two-liter bottle and raising the temperature of the cola solution.
D. The cap keeps the pressure of the gas in the bottle at a high level preventing carbon dioxide from leaving the solution.
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