Section A
Q.1 a) Gimli Glider episode of Air Canada, and NASA MARS Climate Orbiter 5+5=10
accidents happened due to chemical process calculation errors. Present an
overview of the above two accidents to highlight the calculation errors.
b) A relation for a dimensionless variable called the compressibility (z), which is
used to describe the pressure-volume-temperature behavior for real gases, is
z = 1 + B$\rho$ + C$\rho$^2 + D$\rho$^3 where $\rho$ is the density in g mol/cm$^3$. Find the
units of B, C, and D and Convert the coefficients in the equation for z so that
the density can be introduced into the equation in the units of lbm/ft$^3$ thus:
z = 1 + B* $\rho$* + C*($\rho$*)^2 + D*($\rho$*)^3
$\rho$* is in lbm/ft$^3$. Give the units for B*, C*, and D*, and give the equations
that relate B* to B, C* to C, and D* to D. Assume Molecular Weight as MW.
Q.2 a) Given that the heat capacity equation for CO$_2$ gas in the temperature range 0 7+3-10