Choose the most suitable answer $($Fill in the blank one choice$)$ on the attached answer sheet:

Which of the following process variables is not a derived unit?

a$.$ Temperature

b$.$ Density

c$.$ Pressure

d$.$ Concentration

The following equation $(1)$ is said to be dimensionally homogeneous:

$P(mmHg)=1230$exp$(-\frac{3281}{T(C)+216\mathrm{.}3})$

$(1)$ Use this equation in your answer questions $(2-3)$:

The units of the constant $1230$ is: $q,$

a$.C$

b$.mmHg$

c$.\frac{1}{m}mHg$

d$.$ non

The units of the constant $216\mathrm{.}3$ is: $q,$

a$.C$

b$.mmHg$

c$.\frac{1}{}C$

d$.$ non

What is the density of a solid in $I\frac{b_m}{f}{t}^3?$ if its specific gravity is $5\mathrm{.}7($the water density is $1\mathrm{.}00\frac{g}{c}{m}^3)$

a$.355I\frac{b_m}{f}{t}^3$

b$.5\mathrm{.}7l\frac{b}{f}{t}^3$

c$.0\mathrm{.}355,l\frac{b}{f}{t}^3$

d$.5700l\frac{b_m}{f}{t}^3$

Which of the following devices is used to measure high pressure $?$

a$.$ Rotameter

b$.$ Differential manometer

c$.$ Open$-$end manometer

d$.$ Bourdon gal

Calculate the average molecular weight of a solution containing $($weight $\%)$: $30\%$ water $(MW=18)40\%$ acetone $)=(58,$ and $30\%$ MIBK $)=(100?$

a$.58\mathrm{.}6$

b$.37\mathrm{.}6$

c$.176$

d$.$ non