If steam is passing through a throttling valve in a steady flow process, and we define the control volume as the valve:Question 2Select one:a.ΔmCV = 0, ΔECV = 0 and ΔSCV = 0b.ΔmCV > 0, ΔECV > 0 and ΔSCV > 0c.ΔmCV = 0, ΔECV > 0 and ΔSCV > 0d.ΔmCV = 0, ΔECV = 0 and ΔSCV > 0

Which of the following statements are true regarding throttling valves?Group of answer choicesThrottle valves are flow restricting devices that cause a pressure drop in a fluid.The pressure drops across a throttle valve is often accompanied by a large increase in temperature.The flow through a throttle valve may be assumed to be adiabatic.Since pressure drops across a throttle valve, work cannot be neglected.For a single stream, steady flow throttle valve, the inlet and outlet enthalpies can be approximated to be the same.

If properties are allowed to change within the control volume, the processes are called ______ flow.

The vapour pressure of water depends upon :(A) Surface area of container (B) Volume of container(C) Temperature (D) All

Which of the statements are true?Group of answer choicesFor flow in a pipe, the velocity is the same across the pipe cross section.Mass flow rate can be defined as the multiples of density, pipe average velocity, and cross section area normal to the velocity.A volume flow rate is defined as the volume of the fluid flowing through a cross section per unit time.A mass flow rate into control volume is proportional to the velocity component parallel to the cross sectional area.Mass flow rate is defined as the amount of mass flowing through a cross section per unit time.

According to Boyle’s Law, when __________ is held constant, the pressure and volume of a gas are __________ proportional