Physics Amount of A Certain Number of Particles Question
Question 2
In a container of gas, all molecules have the same kinetic energy at a certain temperature T.
Group of answer choices
True
False
Question 3
What is the definition of a mole?
Group of answer choices
The amount of a certain (large) number of particles
The average kinetic energy of a certain (large) number of particles
The mass of a certain (large) number of particles
Question 4
What is the total kinetic energy of 2 moles of helium gas (He, monoatomic) at 300 K? Round your answer to the nearest integer.
Question 5
Which one of the following is NOT one of the postulates of the ideal-gas model?
Group of answer choices
The particles are moving quickly
The particles are moving randomly
The gas is made up of a large number of particles
The collisions between the particles are perfectly elastic
The particles are far from each other and interact only rarely when they collide
Question 60.5 pts
What is the temperature (in kelvin) of 0.306 moles of gas that is confined to a 3.36-L container at a pressure of 9.25 atm? Give your answer to two decimal places.
Question 7
0.551 moles of an ideal gas are confined to a rigid container (V = 5.57 L). The pressure of gas at T = 914 K was 6.03 atm. What is the pressure (in atm) at T = 1,746? Give your answer to two decimal places.
Question 8
What is the name we give to a process in which no heat is transferred to or from the system?
Group of answer choices
isothermal
isovolumetric
isobaric
isochoric
adiabatic
Question 9
In a constant-pressure process, when gas expands, the work is leaving the system.
Group of answer choices
True
False
Question 10
Which one of the following could be the ratio gamma for a triatomic ideal gas?
Group of answer choices
9/7
7/5
5/3
Question 11
When do we use R, and when do we use kB, as a rule?
Group of answer choices
We can use R and kB completely interchangeably
We use R when we need to calculate the total energy, and we use kB when we need to calculate average energy per mode
We use R when we deal with an ideal gas, and we use kB when we talk about non-ideal gas
We use R when we talk about macroscopic amounts of gases (moles), and we use kB when we talk about a small number of particles
