Problemas
5. When a rubber rod is rubbed with silk, the rubber becomes negatively charged, and the silk becomes positively charged . This is based on the triboelectric effect, where different materials gain or lose electrons when in contact. Describe the reasoning behind this transfer of charge based on the principle of conservation of charge. __
Roztwór
Vladimir
maestro · Tutor durante 5 años
4.7
(135 Votos)
Respuesta
The reasoning behind the transfer of charge when a rubber rod is rubbed with silk is based on the triboelectric effect. This effect occurs because different materials have different abilities to attract electrons. In this case, rubber has a lower electron affinity than silk, meaning it is less likely to attract electrons. Therefore, when the two materials come into contact, electrons are transferred from the rubber to the silk. This results in the rubber becoming negatively charged (as it has lost electrons) and the silk becoming positively charged (as it has gained electrons). This process is consistent with the principle of conservation of charge, which states that the total charge in an isolated system remains constant.
Explicación
## Step 1The problem involves the triboelectric effect, which is a phenomenon where certain materials become electrically charged after they come into frictional contact with a different material. In this case, the materials are rubber and silk.## Step 2When rubber is rubbed with silk, the rubber tends to lose electrons to the silk. This is due to the difference in the ability of the materials to attract electrons. Rubber has a lower electron affinity than silk, meaning it is less likely to attract electrons.## Step 3As a result of this electron transfer, the rubber rod becomes negatively charged because it has lost electrons, and the silk becomes positively charged because it has gained electrons.## Step 4This process is consistent with the principle of conservation of charge, which states that the total charge in an isolated system remains constant. In this case, the total charge of the rubber and silk system remains constant, even though the individual charges of the rubber and silk change.