1) Assert the following statements as true (T) or false (F)

1.27 Gage pressure indicates the difference between the absolute pressure of a system and the absolute pressure of the atmosphere existing outside the

measuring device.

1.28 Systems can be studied only from a macroscopic point of view.

Kilogram, second, foot, and newton are all examples of SI units.

Temperature is an extensive property.

1.29

1.30

1.31

Mass is an intensive property.

1.32

The value of the temperature expressed using the Celsius temperature scale is always higher than its value expressed using the Kelvin scale.

1.33 WP Intensive properties may be functions of both position and time, whereas extensive properties can vary only with time.

1.34 Devices that measure pressure include barometers, Bourdon tube gages, and manometers.

1.35

Both the Kelvin scale and the Rankine scale are absolute temperature scales.

If a system is isolated from its surroundings and no changes occur in its observable properties, the system was in equilibrium at the moment it was

1.36

isolated.

1.37

1.38

1.39

1.40

1.41

1.42

1.43

1.44

A control volume is a special type of closed system that does not interact in any way with its surroundings.

1.45 When a closed system undergoes a process between two specified states, the change in temperature between the end states is independent of details of

the process.

1.46 Body organs, such as the human heart, whose shapes change as they perform their normal functions can be studied as control volumes.

1.47

1 N equals 1 kg - m/s² but 1 lbf does not equal 1 lb-ft/s².

1.49

1.50

1.51

1.52

The specific volume is the reciprocal of the density.

Volume is an extensive property.

The pound force, lbf, is equal to the pound mass, lb.

1.53

1.54

1.55

1.56

1.57

The value of a temperature expressed using the Rankine scale is always higher than its value expressed using the Fahrenheit temperature scale.

Pressure is an intensive property.

A closed system always contains the same matter; there is no transfer of matter across its boundary.

One nanosecond equals 109 seconds.

Specific volume, the volume per unit of mass, is an intensive property whereas volume and mass are extensive properties.

In local surroundings at standard atmospheric pressure, a gage will indicate a pressure of 0.2 atm for a refrigerant whose absolute pressure is 1.2 atm.

The kilogram for mass and the meter for length are examples of SI base units defined relative to fabricated objects.

The Rankine degree is a smaller temperature unit than the Kelvin degree.

If the value of any property of a system changes with time, that system cannot be at steady state.

According to Archimedes" principle, the magnitude of the buoyant force acting on a submerged body is equal to the weight of the body.

The composition of a closed system cannot change.

Temperature is the property that is the same for each of two systems when they are in thermal equilibrium.

The volume of a closed system can change.