Answer :
Final answer:
Charging a system with a capillary tube involves capillary action. This process sees fluid rise or be suppressed in a narrow tube based on adhesive forces, the weight of the fluid, surface tension and the contact angle. Through this understanding, the method of charging can be effectively executed.
Explanation:
The recommended method of charging a system with a capillary tube system is defined by capillary action, which refers to the tendency of a fluid to climb or be suppressed in a narrow capillary tube based on the interactions of cohesive and adhesive forces. When you immerse one end of the small diameter capillary tube into a fluid, the fluid creeps up the inside of the tube until the weight of the fluid and the adhesive forces are in balance. The actual effect of the fluid climbing or being suppressed depends on the contact angle and the relative strengths of the cohesive and adhesive forces.
For instance, if the contact angle is less than 90°, the fluid will rise in the tube. If the contact angle is greater than 90°, the fluid will be suppressed within the tube. This action, whether the fluid rises or is suppressed, is influenced by surface tension, which constantly works to minimize the surface area of the fluid.
In summary, the method of charging a system with a capillary tube involves balancing the weight and adhesive forces of a fluid in a narrow tube and the resulting action is determined by the contact angles and the surface tension of the given fluid.
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