Q1.A) A definite mass of mercury is heated from one bar and 20 C to 40 C under constant volume...

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Q1.A) A definite mass of mercury is heated from one bar and 20 C to 40 C under constant volume conditions. Calculate the final pressure if ______________B) Show that there is an entropy generation during the isothermal mixing of two different gases.

David · Accepted Answer

SOLUTION -1 
Volume (V) is a function of Pressure (P) & temperature (T) 
V= f( P,T) 
Partial differential form  
dV = (∂V/∂T)P dT + (∂V/∂P)TdP                                                     Eq. No. 1 
We know that from question  
NOTE- value given in question is not quite visible, as what is the power of 10 is not visible, so if I have 
taken wrong value, you pls. change in your answer.  
Volume co-efficient of expansion for mercury β = 0.182 x 10-4 K-1 
The co-efficient of compressibility   α = 4.02 x 10-6 Bar-1 
T1= 20+273 = 293 K 
T2= 40+273 = 313 K  
dT= 20 K 
As we know that  
Volume co-efficient of expansion for mercury β = - (1/V) (∂V/ ∂T) P 
The co-efficient of compressibility   α = (1/V) (∂V/ ∂P) T 
From equation 1 ,

Q1. A) A definite mass of mercury is heated from one bar and 20 C to 40 C under constant volume conditions. Calculate the final pressure if ______________ B) Show that there is an entropy generation...

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