- #1
Abdlellah
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Homework Statement
1. A piston cylinder arrangement ( A = 0.25 m^2, P1= 200 KPa, V1= 0.05 m^3. is loaded with a linear spring. in the current configuration the spring exerts no force on the piston head. if the atmospheric pressure is 101 KPa, what is the mass of the piston head. Heat is now added casing the bolume to double, what is the new pressure? how many air Blobs( mean this closed system) do we encounter in this transformation?
I calculated and my answer is mass =2520 Kg .
P2= 240KPa
the third part (how many air Blobs( we named the closed system as blob) do we encounter in this transformation?) i don't understand it at all i need help in it ...
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this is the 2nd question i don't understand it at all what i have to do and what's the x-axis and y axis
2. assume that our transformation in problem 1 is reversible. in the (V,p) plane, plot the transformation between the initial and final states ( hint: solve our force balance equation for p, tnow substitute for y= V/A if you have not already done so this will give pressure as a function of volume: p=p(V) where all other parameters are constant. Plot p(V) !)
please please help XD