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heat capacity at constant pressure Cp=(dH/dT) the difference between H(enthalpy) and U(internal energy) is PdV=RT(in perfect...
heat capacity at constant pressure
Cp=(dH/dT)
the difference between H(enthalpy) and U(internal energy) is
PdV=RT(in perfect gas)
Then, in real gas, how can I know the difference?
Solutions
Amanda K answered 2 years agoRelated Solutions
What is the difference between internal energy, heat, and enthalpy? Are they ever the same? Please...
What is the difference between internal energy, heat, and
enthalpy? Are they ever the same?
Please write down and describe a couple of equations that help
us understand the relationship between these quantities.
Enthalpy H is a measure of the energy content of a system at constant pressure. Chemical...
Enthalpy H is a measure of the energy content of a system at
constant pressure. Chemical reactions involve changes in enthalpy,
ΔH, which can be measured and calculated:
ΔHrxn∘=∑productsmΔHf∘−∑reactantsnΔHf∘ where the subscript "rxn" is
for "enthalpy of reaction" and "f" is for "enthalpy of formation"
and m and n represent the appropriate stoichiometric coefficients
for each substance. The following table lists some enthalpy of
formation values for selected substances. Substance ΔHf∘ (kJ/mol)
NaOH(aq) −469.1 MgCl2(s) −641.8 NaCl(aq) −407.3 Mg(OH)2(s) −924.5...
Is the relation "delta h(enthalpy) = m * Cp,avg * delta T" restricted to constant pressure...
Is the relation "delta h(enthalpy) = m * Cp,avg * delta T"
restricted to constant pressure process only, or can it be used for
any kind of process of an ideal gas? detailed and
easy-to-understand reason included, please.
Is the relation "delta h(enthalpy) = m * Cp,avg * delta T" restricted to constant pressure...
Is the relation "delta h(enthalpy) = m * Cp,avg * delta T"
restricted to constant pressure process only, or can it be used for
any kind of process of an ideal gas? detailed and
easy-to-understand reason included, please.
A perfect gas has a constant molar volume heat capacity of Cvm=1.5R and a constant pressure...
A perfect gas has a constant molar volume heat capacity of
Cvm=1.5R and a constant pressure molar heat capacity of Cpm=2.5R.
For the process of heating 2.80 mol of this gas with a 120 W heater
for 65 seconds, calculate:
a) q, w, delta(T), and delta(U) for heating at a constant
volume
b) q, w, delta(T), and delta(H) for heating at a constant
pressure
A specific type of ideal gas has a specific heat capacity at constant pressure (cp=cv+R) that...
A specific type of ideal gas has a specific heat capacity at
constant pressure (cp=cv+R) that is a
function of temperature T, such that cp=0.48T+885, where
cp has units of J/kg/K and T has units of K. The gas,
which is initially at T1 = 314 K and P1 = 1x105 Pa,
undergoes a reversible adiabatic process such that its final
temperature is T2 = 772 K. Calculate the pressure of the gas (in
Pa) in this final state. Assume...
Explain your answer. Internal Energy (U); Enthalpy (H); Helmholtz Free Energy (A or F); Gibbs Free...
Explain your answer.
Internal Energy (U); Enthalpy (H); Helmholtz Free Energy (A or
F); Gibbs Free Energy (G),
which one is most appropriate for a problem on
a) Explosions
b) Skin Permeation of Chemicals
c) Rubber Elasticity
d) Distillation Columns
Thermodynamics What is the difference between internal energy and enthalpy? a. Give a definition for each...
Thermodynamics
What is the difference between internal energy and
enthalpy?
a. Give a definition for each quantity
b. Give an example of when focusing on internal energy would be
especially relevant
c. Give an example of when focusing on enthalpy would be especially
relevant.
The heat capacity, Cp, of liquid carbon disulfide is a relatively constant 78J(molK). However, the heat...
The heat capacity, Cp, of liquid carbon disulfide is a
relatively constant 78J(molK). However, the heat capacity of solid
carbon disulfide varies greatly with temperature. From 99K to its
melting point at 161K, the heat capacity of solid carbon disulfide
increases linearly from 44 J/(molK) to 57 J/(molK).
The enthalpy of fusion of carbon disulfide is 4390 J/mol.
The absolute entropy of liquid carbon disulfide at 298K is 151
K/(molK).
Estimate the absolute entropy of carbon disulfide at 99K.
What are the heat capacity constant (Cp) values for C10H8 ,O2 , C8H4O3 ,CO2 and H2O...
What are the heat capacity constant (Cp) values for
C10H8 ,O2 ,
C8H4O3 ,CO2 and
H2O at 600 K according to the Antoine equation?
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