Problem $1(33\%)$

Determine the pressure, phase and quality $($if applicable$)$ for R$-$

$410$ A at $0C$ with $v=0\mathrm{.}252\frac{m^3}{k}g.$

Problem $2(33\%)$

Determine the phase of the following substances and find the

values of the unknown quantities.

a$)$ Water, $P=500$kPa,$T=20C,v=?x=?$

b$)R-410A,T=-30C,v=0\mathrm{.}08\frac{m^3}{k}g,P=,x=?$

c$)$ Ammonia, $T=-30C,v=1\mathrm{.}1573\frac{m^3}{k}g,P=?,x=?$

Problem $3(34\%)$

Determine the specific volume of methane at $27C$ and $2000$

kPa using:

a$)$ The methane table

b$)$ The ideal gas law

c$)$ The compressibility chart

d$)$ Which answer is the most accurate and why?