Vacuum Pressure and Temperature Relations Quiz

VACUUM PRESSURE (𝑃𝑣𝑎𝑐) is lower than ______ pressure

ABSOLUTE ZERO PRESSURE aka perfect vacuum is lower than ______ pressure

TEMPERATURE RELATION is Fahrenheit to Celsius and vice versa ABSOLUTE TEMPERATURE RELATION is Kelvin to ______

KINETIC ENERGY (KE) is the energy stored in a moving ______

POTENTIAL ENERGY OF SPRING OR ELASTIC BODIES (𝑃𝐸𝑠) is measured proportionally in the amount of elastic ______ it possesses

INTERNAL ENERGY (U) is an energy developed through the movement of the molecules within the substance brought about the change in ______

ENTROPY is a measure of the randomness of the molecules of a substance or the fraction of the total energy of a system that is not available for doing work.

CONSERVATION OF MASS states that the mass of a body is constant during its motion.

MASS FLOW RATE is the amount of mass flowing per unit time.

COMPRESSIBLE FLOW SYSTEM means that the working substance passing through a thermodynamic system is subject to a change of bulkiness due to the compression during a steady flow process.

VOLUME FLOW RATE is the product of the area of the cross-section where the fluid flows same as its velocity.

ENERGY BALANCE OR BALANCED ENERGY EQUATION is used to determine the required ____ in the problem such as energy and heat transferred and work done by/on the system.

When the unknown is the internal energy of the body, find the initial value of the internal energy since we need to have a sort of reference at absolute zero temperature where internal energy is almost ______.

When the unknown is the flow work, consider the absolute value of the pressure since we are in reference with the absolute zero pressure/vacuum pressure where the flow work is also ______.

Heat energy flow from higher potential to lower potential body. High temp body = ______, Cold temp body = ______.

Steady-flow devices such as turbines, compressors, and nozzles operate for long periods of time under the same conditions, once the transient start-up is completed and steady operation is established. They are part of the ______ analysis.

Steady-flow process is a process during which a fluid flows through a control volume steadily. Steady means no change with ______.

The fluid properties at an inlet or exit remain constant. All properties including the velocity and elevation, must remain constant with time at a fixed point at an inlet or ______.