Two reasons why displacement method is not suitable when determining the volume of a charcoal?
charcoal is a floater therefore doesnt get fully immersed in water
Charcoal absorbs water
Bricks absorbs water
No
The displacement method is a common technique used to determine the volume of an irregularly shaped object by measuring the volume of water displaced when the object is submerged. However, there are two key reasons why the displacement method may not be suitable for determining the volume of charcoal specifically:
1. Porous Nature: Charcoal is highly porous, consisting of small pockets and gaps within its structure. When submerged in water, the water may penetrate into these pores, causing inaccuracies in the volume measurement. Some of the water may get trapped within the pores of the charcoal without being completely displaced, leading to an underestimation of its volume.
2. Buoyancy Effects: Charcoal is generally less dense than water, which means that it will float rather than sink. This can make it challenging to perform accurate displacement measurements, as the charcoal may not stay submerged. The upward buoyant force acting on the charcoal reduces the amount of water it displaces, resulting in an overestimation of its volume.
Given these challenges, an alternative method such as direct measurement or using more suitable techniques like Archimedes' principle or gas displacement method should be considered to accurately determine the volume of charcoal.