Thermodynamic Equations Flashcards
What is the formula for thermodynamic Equalibrium
Ta=Tb=Tc
What is the Formula for Amount Of Substance (AOS)
Amount of substance (mol) = concentration(mol/m^3) x volume
What is the formula for Specific volume
v (Specific volume) = Vt(total volume) / n(no. of moles)
What is the molar volume
v (molar volume) = Vt(Total volume) / n (mol)
Formula for Work done
Work done = Force x distance
W= F x d
What is the formula for Molar mass
molar mass (g/mol) = mass / no. of moles (mol)
M = m/n
What is the formula for Temperature in Kelvin
Temp in kelvin = temp in celsius + 273.15
T(k) = T(c) +273.5
What is the Formula for Force
Force = mass x acceleration
F= m x a
What is the formula for Pressure
Pressure = Force/ Area
P= F/A
What is the Formula for Weight
Weight = mass x gravity
Weight= m x g
What is the formula for power
Power = Energy transferred / time taken OR Work done / time taken
P = E/t OR P = W/t
What is the derivation for the amount of work
F = P x A
dW = F x dx
dW = P x A dx
dx = d (V/A)
dW = P x A x d(V/A)
Therfore the first answer is the intergral of Pdv from v1 to v2 where v2 is initial volume and v2 is final volume.
What is the sign decision for the intigral for amount of work
If work is done on the system, integral is postiive
If work is done by the system, sign is negative.
Formula for Kinetic Energy
Ek = 1/2 M x v^2
Kinetic energy = half times mass times verlocity squared
What is the formula for Finite change in velocity
W = m(velocity 2 squared over two - velocity 1 squared over two)
W = m((v2)^2/2 - (v1)^2/2)
What is the formula for Potential Energy
Potential energy = mass x acceleration due to gravity x distance( height)
Ep = m x g x Z
What is ƒormula for work with respect to Ep
Work done is the change in Potential Energy
W = ∆Ep
What is the formula for the 1st law of thermodynamics
∆Energy of system + ∆ energy of surroundings = 0
What is the formula for Energy of the system
∆ (u + Ek + Ep) = Q x W
∆ Internal energy + kinetic energy + potential energy = heat + work done.
What is the first Formula for total internal energy
Total internal energy = mass x specific internal energy
Ut = m x U
What is the second formula for total internal energy
Ut = m x U
Total internal energy = total number of moles x molar internal energy
Ut = n x U
What is the integrated formula for Specific internal energy
m∆u = Q + W
mass times the change in internal energy = heat + work done
What is the integrated formula for molar internal energy
n∆U = Q+w
No. of moles times the change in internal energy = heat + work done
