Therodynamics 1 Flashcards
1
Q
What is the formula of linear expansion ?
A
Δl=lαΔt
2
Q
What is the formula of volume expansion ?
A
Δv=vγΔt
For isotopic medium ,
γ=3α
3
Q
What is the change in density due to thermal expansion ?
A
p’=p(1-γΔ#)
With increase in temperature , density should decrease.
4
Q
What is the change in time period of pendulum due to thermal expansion ?
A
ΔT=1/2TαΔ#
5
Q
What is the degree of freedom for monoatomic gas, diatomic gas , and for nonlinear polyatomic gases ?
A
f=3 for monoatomic gases.
f=5 for diatomic gases.
f=6 for nonlinear polyatomic gases.
6
Q
What is the translational degree of freedom for any type of gas ?
A
Translational degree of freedom for any type of as is three.
7
Q
What is the formula for total energy U of a gas ?
A
U= (nf)/2RT. n= total number of gram moles.
