Use the Peng-Robinson equation of state to compute the specific
volume, V (L/mol), for methane gas at 298 K and 40 atm. Report your
answer with 2 significant figures.
Nitrogen (N2) at 1 bar, 300 K enters a compressor
operating at steady state and is compressed adiabatically to an
exit state of 16 bar, 750 K. The N2 is modeled as an
ideal gas and kinetic and potential energy effects are negligible.
Determine the work input, in kJ per kg of N2 flowing,
the rate of entropy production, in kJ/K per kg of N2
flowing, and the isentropic compressor efficiency.
A) Use the Clapeyron equation to estimate (in bar/K) the slope
of the solid-liquid phase boundary of water given the enthalpy of
fusion is 6.008 kJ/mol and the densities of ice and water at
T=0oC are 0.91671 and 0.99984 gm/cm3
respectively.
B) In the preceding problem, what is the pressure required to
lower the melting point of ice by 1C, in bars?
C) The standard molar entropy of rhombic sulfur is 31.80 J/K mol
and that of monoclinic sulfur is...
a. Estimate the roots of the equation by plotting the equation.b. Use the estimates found in part a to nd the roots more accurately with the fzero function.
For each solution, state the equation for the hydrolysis
reaction that occurs and state the equation for the dissolution of
the solid salt in water:
1) HCl
2) Fe(NO3)3
3) HC2H3O2
4) NaH2PO4
5) NH4Cl
6) NaCl
7) NH4C2H3O2
8) NaC2H3O2
9) NaHCO3
10) Na2HPO4
11) NH3
12) NaOH
Propane gas at 1 bar and 35°C is compressed to a final state of
135 bar and 195°C. Estimate the molar volume of the propane in the
final state and the enthalpy and entropy changes for the process.
In its initial state, propane may be assumed an ideal gas.
An equimolar mixture of nitrogen and acetylene enters a
steady-flow reactor at 25℃ and 1.0 bar. The reaction taking
place in the reactor is N2(g) + C2H2(g) = 2 HCN(g). The product
leaves the reactor at 600℃ and 1 bar and contains 24.2% of HCN
by mole. Assuming that the gas mix in the reactor is an ideal gas
with Cp = 43.1 J/mol-K and that no heat loss occurred, how much
heat is supplied to the reactor for each...