Temperature

Q= Amount of Heat ; m= mass ; s = Specific Heat ; θ = Temperature Change (a.k.a ΔT) 

M=Molecular Weight; d= density; γ= Surface Tension ;  k=Eotvos-Ramsay Coefficient ; t_c= Critical Temperature ; t= System Temperature

K_f  = Freezing Point Depression Coefficient ; M = Molecular Weight of the pure solvent ; R = Gas Constant ; T=  Freezing-Point of the pure solvent ; ΔH_fus = Heat of Fusion ; 

K_f =  Freezing Point Depression Coefficient ; M = Molarity of the solution (when solute is added) ; T₀ = Freezing Point of the pure solvent; T_f = Freezing Point of the solution

K_b = Boiling Point Elavation Coefficient ; M = Molecular weight ; T= Boiling Point of the pure Solvent ; ΔH = Heat of Vaporization ;

ΔU= Internal Energy Change ; C_v = Heat Capacity at constant Volume ; T₂ , T₁ =  Final and Initial Temperature;

ΔH= Enthalpy Change ; C_p = Heat Capacity at constant Pressure;  T₁ , T₂ = Initial & Final Temperature ;

P₁ & P₂ = Initial & Final Pressure ; Δ_vapH_m = Molar Enthalpy of vaporization ; T₁ , T₂ = Initial & Final Temperature ; R= Gas Constant ; 

η =  Efficiency ; T_hot =Temperature of the Hot source ; T_cold = Temperature of the Cold Sink ;