Physical Chemistry Flashcards
What is the theory in two or three dimensional collision to be applied when playing billiards and in order to sink the target ball in the corner pocket?
Where two equal masses undergo a glancing elastic collision
An ideal gas will only be considered in the following operating parameters
High Temperature, Low Pressure
Which of the following is false regarding absolute zero?
a.All molecules will stop moving
b.Absolute zero can be achieved
c.Temperature is 0K
d.Temperature is 0R
B.
For a real gas, what causes the deviation from the ideal pressure at a molecular level?
Intermolecular forces of attraction of themolecules with one another
When gas molecules collide, they experience _____ collision.
Perfectly elastic
Which of the following is false with KMT?
a.Gas molecules move in random motion
b.Due to collision of gas molecules witheach other, some kinetic energy is lost
c.The temperature of the whole systemdoes not change with time
d.The size of the molecules are negligible
B.
This is the pressure exerted by the gas molecules that are in equilibrium with the liquid
Vapor pressure
The internal energy of an ideal gas depends on:
Absolute temperature
Which of the following is a characteristic of an adiabatic process?
a.ΔU=0
b.W=0
c.Q=0
d.ΔV=0
C.
Which of the following is not conserved in any process?
Entropy
An isentropic process is:
Reversible and adiabatic
Increasing the temperature of the cold reservoir _____ the Carnot efficiency.
Decreases
If the entropy of a system decreases, the entropy of its surroundings
Must always increase
The amount of heat absorbed when CO2 gas reacts with a solid CaO to form solid CaCO3 is measured in a bomb calorimeter. The data obtained give a direct measure of:
delta U
The general statement of the Third Law of Thermodynamics is attributed to
Walther Nernst
