Answer:
Gay-Lussac's Law states that the pressure of a gas is directly proportional to its temperature, provided that the volume remains constant. Therefore, if the pressure of a gas increases (assuming the volume remains constant), according to Gay-Lussac's Law, the temperature of the gas must also increase.
However, the student's claim about an increase in pressure leading to an increase in volume is incorrect because it overlooks the relationship between pressure, volume, and temperature as described by the combined gas law (or Boyle's Law for the specific relationship between pressure and volume). According to Boyle's Law, if the pressure of a gas increases while the temperature remains constant, the volume of the gas will decrease. This is because there is an inverse relationship between pressure and volume at constant temperature.
In essence, while an increase in pressure may lead to an increase in temperature (according to Gay-Lussac's Law), it does not directly lead to an increase in volume. Instead, if the temperature remains constant, an increase in pressure will result in a decrease in volume, as described by Boyle's Law. Therefore, the student's reasoning is incorrect because it fails to consider the inverse relationship between pressure and volume at constant temperature, as described by Boyle's Law.
