heat transfer is constant

work transfer is constant

mass flow at inlet and outlet is same

all of these

in a steady flow system, no work is done on the atmosphere

in case of unsteady flow system, the volume of the system changes

both of the mentioned

none of the mentioned

$\mathrm{Q}=∆\mathrm{U}-\mathrm{W}$

$\mathrm{Q}=∆\mathrm{U}+\mathrm{W}$

$\mathrm{Q}=∆\mathrm{H}+\mathrm{W}$

$\mathrm{Q}=∆\mathrm{H}-\mathrm{W}$

${\mathrm{h}}_1+\frac{{\mathrm{C}}_1^2}{2}+{\mathrm{z}}_1\mathrm{g}+\mathrm{q}={\mathrm{h}}_2+\frac{{\mathrm{C}}_2^2}{2}+{\mathrm{z}}_2\mathrm{g}+\mathrm{w}$

${\mathrm{h}}_1+\frac{{\mathrm{C}}_1^2}{2}+{\mathrm{z}}_1+\mathrm{q}={\mathrm{h}}_2+\frac{{\mathrm{C}}_2^2}{2}+{\mathrm{z}}_2+\mathrm{w}$

${\mathrm{u}}_1+\frac{{\mathrm{C}}_1^2}{2}+{\mathrm{z}}_1+\mathrm{q}={\mathrm{u}}_2+\frac{{\mathrm{C}}_2^2}{2}+{\mathrm{z}}_2+\mathrm{w}$

all of these

convert kinetic energy to pressure energy

convert pressure energy to kinetic energy

convert potential energy to kinetic energy

convert kinetic energy to potential energy

${\mathrm{C}}_2=\sqrt{2\left({\mathrm{h}}_1-{\mathrm{h}}_2\right)-{\mathrm{C}}_1^2}$

${\mathrm{C}}_2=\sqrt{2\left({\mathrm{h}}_1-{\mathrm{h}}_2\right)+{\mathrm{C}}_1^2}$

${\mathrm{C}}_2=\sqrt{2\left({\mathrm{h}}_1+{\mathrm{h}}_2\right)+{\mathrm{C}}_1^2}$

${\mathrm{C}}_2=\sqrt{2\left({\mathrm{h}}_1+{\mathrm{h}}_2\right)-{\mathrm{C}}_1^2}$

turbine

nozzle

diffuser

boiler

${\mathrm{C}}_1=\sqrt{2\left({\mathrm{h}}_2-{\mathrm{h}}_1\right)-{\mathrm{C}}_2^2}$

${\mathrm{C}}_1=\sqrt{2\left({\mathrm{h}}_2+{\mathrm{h}}_1\right)+{\mathrm{C}}_2^2}$

${\mathrm{C}}_1=\sqrt{2\left({\mathrm{h}}_2-{\mathrm{h}}_1\right)+{\mathrm{C}}_2^2}$

${\mathrm{C}}_1=\sqrt{2\left({\mathrm{h}}_1-{\mathrm{h}}_2\right)+{\mathrm{C}}_2^2}$

$\mathrm{W}=\mathrm{m}\left({\mathrm{h}}_1-{\mathrm{h}}_2\right)-\mathrm{Q}$

$\mathrm{W}=\mathrm{m}\left({\mathrm{h}}_1+{\mathrm{h}}_2\right)-\mathrm{Q}$

$\mathrm{W}=\mathrm{m}\left({\mathrm{h}}_1+{\mathrm{h}}_2\right)+\mathrm{Q}$

$\mathrm{W}=\mathrm{m}\left({\mathrm{h}}_2-{\mathrm{h}}_1\right)-\mathrm{Q}$

$\mathrm{m}\left({\mathrm{p}}_1{\mathrm{v}}_1+\frac{{\mathrm{C}}_1^2}{2}+{\mathrm{z}}_1\mathrm{g}+\mathrm{q}\right)=\mathrm{m}\left({\mathrm{p}}_2{\mathrm{v}}_2+\frac{{\mathrm{C}}_2^2}{2}+{\mathrm{z}}_2\mathrm{g}+\mathrm{q}\right)-\mathrm{W}$

$\mathrm{m}\left({\mathrm{p}}_1{\mathrm{v}}_1+\frac{{\mathrm{C}}_1^2}{2}+{\mathrm{z}}_1\mathrm{g}+\mathrm{q}\right)=\mathrm{m}\left({\mathrm{p}}_2{\mathrm{v}}_2+\frac{{\mathrm{C}}_2^2}{2}+{\mathrm{z}}_2\mathrm{g}+\mathrm{q}\right)+\mathrm{W}$

$\mathrm{m}\left({\mathrm{p}}_1{\mathrm{v}}_1-\frac{{\mathrm{C}}_1^2}{2}+{\mathrm{z}}_1\mathrm{g}+\mathrm{q}\right)=\mathrm{m}\left({\mathrm{p}}_2{\mathrm{v}}_2-\frac{{\mathrm{C}}_2^2}{2}+{\mathrm{z}}_2\mathrm{g}+\mathrm{q}\right)-\mathrm{W}$

$\mathrm{m}\left({\mathrm{p}}_1{\mathrm{v}}_1-\frac{{\mathrm{C}}_1^2}{2}+{\mathrm{z}}_1\mathrm{g}+\mathrm{q}\right)=\mathrm{m}\left({\mathrm{p}}_2{\mathrm{v}}_2-\frac{{\mathrm{C}}_2^2}{2}+{\mathrm{z}}_2\mathrm{g}+\mathrm{q}\right)+\mathrm{W}$