Represent the following processes on the p-V diagrams: i) isobaric, ii) isochoric,
iii) isothermal, iv) cyclic.
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Write the first law of thermodynamics for a gaseous system. Show that the
expression of difference of heat capacities of a gas at constant pressure and at
constant volume is given by
b) 2 kg of water is heated from 0°C to 100°C and converted into steam at the same temperature. Calculate the increase in entropy, given that specific heat of water is
4.18 × 103 J kg−1 K−1 and Latent heat of vaporisation is 2.27 × 107 J kg−1.
- What is transport phenomenon? Obtain an expression for:
- the average number of molecules crossing an arbitrary plane from either side per
unit area per second is (1/4 )nv
Define thermodynamic probability (W) of the macrostate. Establish the relation
between entropy (S) and W.
the average height at which a molecule makes its last collision before crossing
the plane is
2λ.
3
Represent the following processes on the p-V diagrams: i) isobaric, ii) isochoric,
iii) isothermal, iv) cyclic.
A gaseous system expands from volume V1 to V2 under isobaric conditions.
Calculate the work done in this process.
What is Gibb’s paradox? Why does it arise? Obtain Sackur-Tetrode equation and
show that it is free from Gibb’s paradox.