Testy Fiszki Notatki
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Chemia Fizyczna test 1

Pytanie 1
For a perfect gas:
Molar entropy always increases with temprerature
Molar entropy does not depend on pressure
Cv=Cp-nR
pV is proportional to absolute temperature
the enthalpy does not depend on pressure
Pytanie 2
In a reversible adiabatic process:
ΔU=ΔH+Δ(pV) but only for perfect gas
ΔU=w
ΔU=w but only for perfect gas
ΔT=0
q+w=TΔS
Pytanie 3
The standard enthalpy of combustion of a compound:
is defined at standard pressure
is equal to TΔcSo+ΔcGo
is the the heat effect of reaction of combustion of 1 mole of a compound in air at standard pressure
doesn’t depend on temperature
Pytanie 4
The entropy change in an isothermal decompression of a perfect gas against constant pressure p_ext
is equal to -delta(pV)/T
is equal to (C_v razy delta T)/T
is equal to zero
is equal to delta(pV)/T
none from above
Pytanie 5
In first order phase transition:
thermal expresion coefficient shows a discontinuity
Entropy shows a discontinuity
The heat capacity shows a discontinuity
Entropy changes in continous way
The transition entropy is delta H=T delta trans S
Pytanie 6
The chemical potential μi:
always increases with temperature
doesn’t depend on pressure
at the triple point of a substance is equal for solid, liquid and vapor
can be defined as (dG/dξ)T
has a minimum at the critical point
Pytanie 7
the enthopy of mixing:
is 0 for perfect gases
is equal to -Rlnx in system (raoult's law)
is equal to RTlnx in system (henry's law)
is equal to -RTlnx in system (raoult's law)
is equal to Rlnx in system (henry's law)
Pytanie 8
The thermodynamic equilibrium constant K:
depends on the partial pressures in the reaction mixture
does not depend on the total volume of the reaction mixture
has a temperature dependence given by the Van’t Hoff law
depends on the molar fractions of reactants and products in the mixture
does not depend on temperature
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