Molecular Physics | Thermodynamics Answers

Radiation is contained in a volume V and has pressure P and total energy E .
Justify the correct value of PV
Answer: E/3

Another name of partition function in statical mechanics
1)sum over states
2)Addition of states
3) multiplication of states
4) Substraction of states

A large truck tire is inflated to a gauge pressure of 88 psi. The total area of one sidewall of the tire is 1,220 in2. What is the net outward force (in lb) on the sidewall because of the air pressure? (Enter the magnitude.)

an iron rod is length 50m when the temperature is 20 degree celcuis by how much will it expand when the temperature rises to 30 degree celcuis

An echo is heard from a building 0.721 s after you shout "hello." How many feet away is the building if the air temperature is 21.5°C?

A blacksmith dropped a 1.5kg iron bead at 300°C into some quantity of water. If the temperature of the water rose from 15°C to 180°C, calculate the mass of the water. (specific heat of iron = 0.46J/kg/C) (water= 4.2*10^3J/kj/C)

A large balloon used to sample the upper atmosphere is filled with 525 m3 of hydrogen. What is the mass of the hydrogen (in kg)?

Consider a mixture of equal number of non-interacting single atomic gas and diatomic gas. The internal energy per particle is given by :
(A) 2kT
(B) 4kT
(C) 3/2kT
(D)5/2kT

The degeneracy of spectral term 3F is
(A) 7 (B) 9
(C) 15 (D) 21

A reversible adiabatic process is
(A) Isobaric (B) Isochronic
(C) Isentropic (D) Isothermal