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ndicate whether the following statements are true or false. Explain. 34. Devices

ID: 2073430 • Letter: N

Question

ndicate whether the following statements are true or false. Explain.

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

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

36. 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 isolated.

37. The specific volume is the reciprocal of the density.

38. Volume is an extensive property.

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

40. The value of a temperature expressed using the Rankine scale is always higher than its value expressed using the Fahrenheit temperature scale. 41. Pressure is an intensive property.

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

43. One nanosecond equals 109 seconds.

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

Explanation / Answer

34. True.

35. True.

36. True

37. True.

38. True

39. False. (Lbf is a unit of force and lb is a unit of mass)

40. True.

41. True.

42. True.

43 . False( one nanosecond is equal to one thousand- millionth of a second)

44. False( control volume is also known as open system, involves mass flow across the boundary of the system)