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The second law states that where dS ≥ dQ/T for a reversible process and dS = dQ/T for an irreversible process.
a. Show that since dW12 = -dW21 (dWreverse = -dWforward) for a reversible process, then dQ12 = TdS12
b. An egg, initially at rest, is dropped onto the floor. Prove that this process is irreversible. You can assume that the egg returns to its initial temperature after it breaks.
The ionisation potential of a hydrogen atom is -13.6 eV. What will be the energy of the atom corresponding to n= 2 . (1) -3.4 eV (2)-6.8 eV (3) -1.7 eV
Salt bridge is a U-shaped tube containing a semi-solid paste of some inert electrolyte like KCl, KNO 3 , NH 4 Cl, etc. in agar-agar and gelatin. An inert electrolyte is one which
A completely filled d -orbital ( d 10 ): (1) Spherically symmetrical (2) Has octahedral symmetry (3) Has tetrahedral symmetry (4) Depends on the atom Ans: Spherical
Explain Ethanolysis Ethanolysis of the acetal linkage occurs in ethanol just as hydrolysis occurs in water. An ethyl pyranoside is also produced from the glucose residue at th
FIND HYBRIDISATION OF NITROGEN IN NO
A bond with maximum covalent character between non-metallic elements is formed: (1) Between identical atoms (2) Between chemically similar atoms (3) Between atoms of wide
disadvantages of sludge formation
Vacancies A vacancy is a lattice position that is vacant due to the atom is missing. It is formed when the solid is formed. Vacancies are simply empty atom site.
a. Calculate the global radiation density (kWh/m 2 ) received by five panels located in San Jose on July 1, 2012: Panel A: Tilt=37.3 o , Azimuth=180 o (South) Panel B: Ti
Which of the following conduct electricity in the fused state: (1) BeCl 2 (2) MgCl 2 (3) SrCl 2
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