What is the effect of increasing the pressure of a gas at constant temperature o
Practice Questions
Q1
What is the effect of increasing the pressure of a gas at constant temperature 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 temperature on its RMS speed?
Step 1: Understand what RMS speed is. RMS speed stands for Root Mean Square speed, which is a measure of the average speed of gas particles.
Step 2: Know that RMS speed depends on temperature and molar mass of the gas. The formula for RMS speed is v_rms = sqrt(3RT/M), where R is the gas constant, T is the temperature, and M is the molar mass.
Step 3: Recognize that pressure is related to the number of gas particles and their speed, but at constant temperature, the average kinetic energy of the gas particles remains the same.
Step 4: Realize that increasing pressure at constant temperature means that the volume of the gas decreases, but the temperature does not change.
Step 5: Conclude that since temperature is constant, the RMS speed of the gas particles does not change when pressure increases.
