What happens to oxygen pressure in a system if the temperature decreases?

What happens to oxygen pressure in a system if the temperature decreases?

• A. The pressure increases
• B. The pressure stays the same
• C. The pressure decreases
• D. The pressure fluctuates randomly

Answer: (C)

When the temperature of a gas decreases while it is contained in a system, its pressure also decreases. This relationship is explained by the ideal gas law, which states that pressure is directly proportional to temperature when volume and the amount of gas are held constant. According to this law, if the temperature drops, the kinetic energy of the gas molecules decreases, which in turn reduces the frequency and intensity of their collisions with the walls of the container. As a result, the overall pressure exerted by the gas also declines. Hence, in this context, a decrease in temperature leads to a decrease in oxygen pressure within a closed system.

When the temperature of a gas decreases while it is contained in a system, its pressure also decreases. This relationship is explained by the ideal gas law, which states that pressure is directly proportional to temperature when volume and the amount of gas are held constant. According to this law, if the temperature drops, the kinetic energy of the gas molecules decreases, which in turn reduces the frequency and intensity of their collisions with the walls of the container. As a result, the overall pressure exerted by the gas also declines. Hence, in this context, a decrease in temperature leads to a decrease in oxygen pressure within a closed system.