Which of the following is NOT an assumption about an ideal gas?
A. There are no intermolecular forces of attraction.
B. The molecules do not collide with each other.
C. The molecules have no kinetic energy.
D. The molecules occupy no volume.
To determine which of the following is NOT an assumption about an ideal gas, let's go through each option and evaluate them one by one:
A. There are no intermolecular forces of attraction. - This statement is an assumption about an ideal gas. In an ideal gas, it is assumed that there are no intermolecular forces of attraction between the gas molecules.
B. The molecules do not collide with each other. - This statement is also an assumption about an ideal gas. In an ideal gas, it is assumed that the gas molecules move randomly and collide with each other and the walls of the container.
C. The molecules have no kinetic energy. - This statement is NOT an assumption about an ideal gas. In an ideal gas, it is assumed that the gas molecules have kinetic energy due to their random motion.
D. The molecules occupy no volume. - This statement is an assumption about an ideal gas. In an ideal gas, it is assumed that the gas molecules occupy no volume, meaning their size is negligible compared to the volume of the container.
Therefore, the answer is C. The assumption that the molecules have no kinetic energy is NOT accurate for an ideal gas.