Intermolecular Forces and Properties
What does the 'R' represent in the ideal gas law equation PV=nRT?
The ideal gas constant
The rate of reaction
The radius of gas particles
The relative gas density
When a fixed amount of an ideal gas undergoes an adiabatic expansion from state A to state B resulting in work done by the system, what happens to its internal energy and temperature relative to state A?
Internal energy decreases and temperature decreases.
Internal energy increases and temperature increases.
Internal energy increases and temperature decreases.
Internal energy remains unchanged and temperature increases.
In which case would an ideal gas be most likely to exert higher pressure on its container walls?
Heating at constant volume increases kinetic energy causing more frequent collisions with container walls.
Reducing temperature decreases particle kinetic energy leading to less forceful impacts upon containment surfaces.
Increasing volume at Constant Temperature gives particles more space reducing frequency collisions with walls.
Decreasing the amount of substance without changing other conditions reduces collisions with container walls.
What is the temperature (in Celsius) of a 0.250 mol of a gas that occupies 75.0 L at 0.155 atm of pressure?
You need to know the identity of the gas in order to determine the temperature.
293 °C
566 °C
5.59 °C
When using PV=nRT for calculations involving gases at STP (standard temperature and pressure), what values should be used for P and T?
P = 14.7 psi, T = 298 K
P = 760 mmHg, T = 25°C
P = 101 kPa, T = 0°C
P = 1 atm, T = 273 K
How does adding additional quantities inert gaseous substances into sealed rigidity vessel effect overall pressurization inside that said enclosure assuming consistent thermal levels volumes maintained?
Lessening Molecule Counts Will Likewise Raise Force Exertions
Keeping Identical Molecular Totals Yet Enhancing Areas Reduces Stress Impacts
Maintaining Equalized Particulate Sums While Elevating Degrees Lowers Strains
Inserting More Particles Present Cause Collision Rates Increase Resultantly Upward Pressures Movements
When temperature is measured in the ideal gas law calculation, which temperature scale must be used?
Fahrenheit (F)
Celsius (C)
Kelvin (K)
Rankine (Ra)

How are we doing?
Give us your feedback and let us know how we can improve
If the amount and temperature of a gas are held constant, what happens to pressure when volume decreases?
Pressure remains unchanged.
Pressure fluctuates unpredictably.
Pressure decreases.
Pressure increases.
A gas has a volume of 9L at 20 degrees C. When the temperature is increased to 30 degrees C, what is the new volume of the gas? Assume ideal conditions.
0.66 L
3.33 L
13.5 L
14 L
If a sample of gas is heated from 300 K to 600 K while the volume remains constant, what happens to the pressure of the gas?
The pressure will double.
The pressure will remain constant.
The pressure will quadruple.
The pressure will halve.