What is the effect of increasing the pressure of a gas at constant volume on its
Practice Questions
Q1
What is the effect of increasing the pressure of a gas at constant volume on its RMS speed?
Increases RMS speed
Decreases RMS speed
No effect on RMS speed
Depends on the gas
Questions & Step-by-Step Solutions
What is the effect of increasing the pressure of a gas at constant volume on its RMS speed?
Step 1: Understand that RMS speed refers to the root mean square speed of gas molecules.
Step 2: Recognize that pressure, volume, and temperature are related in a gas (this is described by the ideal gas law).
Step 3: Note that in this scenario, the volume of the gas is kept constant.
Step 4: When pressure increases at constant volume, it means that the gas molecules are colliding with the walls of the container more frequently and with greater force.
Step 5: This increase in pressure indicates that the temperature of the gas must also increase (according to the ideal gas law).
Step 6: Higher temperature means that the gas molecules have more energy and move faster.
Step 7: Since RMS speed is related to the average speed of the gas molecules, an increase in temperature leads to an increase in RMS speed.
