Verify the validity of Maxwell relation #4 for steam at 500 °C and 300 kPa. the numerical value of either left hand side or right hand side of the equatic

[3] Consider saturated liquid water initially at 1000 kPa that is "flashed" to 101.325 kPa in an isentropic flash process. Determine the final temperature and quality.

For heat transfer, We have thermal diffusivity and thermal conductivity. But For mass transfer, We have only the mass diffusivity. Why?

Viscous heating in laminar tube flow (asymptotic solutions). (a) Show that for fully developed laminar Newtonian flow in a circular tube of radius R , the energy equation becomes 4µo max 1 a r dr () (11B.2-1) az R2 if the viscous dissipation terms are not neglected. Here v,max is the maximum velocity in the tube. What restrictions have to be placed on any solutions of Eq. 11B.2-1? (b) For the isothermal wall problem (T = T, at r= R for z> 0 and at z = 0 for all r), find the asymptotic expression for T(r) at large z. Do this by recognizing that aT/dz will be zero at large z. Solve Eq. 11B.2-1 and obtain T(r) – T, = 4k (11B.2-2) (c) For the adiabatic wall problem (q, = 0 atr R for all z> 0) an asymptotic expression for large z may be found as follows: Multiply Eq. 11B.2-1 by rdr and then integrate from r = 0 to r = R. Then integrate the resulting equation over z to get T, - T = (4µ0 max/pČ,R²)z (11B.2-3) in which T, is the inlet temperature at z = 0. Postulate now that the asymptotic…

Why are distillation columns arranged for countercurrent flow of liquid and vapor?

Prove that the COP of a reversible refrigerator operating between two given temperatures isthe maximum.

21.1-2. Conversion of Mass-Transfer Coefficients. Prove or show the following relationships, starting with the flux equations: a. Convert k to k, and kG- b. Convert kr to ky and k'. c. Convert kG to k, and ke.

Calculate the viscosity of benzene vapour at (i) 273 K, (ii) 298 K, (iii) 1000 K. Take σ as 0.88 nm2.

The work for irreversible compression of an ideal gas in a piston-cylinder system is the work for reversible compression to the same final pressure. a) higher than b) lower than c) the same as d) We need more information