Thermodynamics Handout (Objectives) Flashcards
The term “thermodynamics” comes from Greek words “therme” and “dynamis” which means
A. Heat power
B. Heat transfer
C. Heat energy
D. Heat motion
Heat power
What refers to a system in which there is a flow of mass across its boundaries?
A. Open system
B. Closed system
C. Isolated system
D. Non flow system
Open system
What do you call a system in which there is a flow of matter through its boundaries? This system usually encloses the device involving mass flow like compressor, turbine, or nozzle.
A. Closed System
B. Open System
C. Isolated System
D. All of these
Open System
An open system first law should be utilized on all of the following except
A. compressor
B. a turbine
C. piston-cylinder device with no inlet/exhaust valves
D. a nozzle
piston-cylinder device with no inlet/exhaust valves
What type of thermodynamics system that allow energy to cross the system boundary but does NOT allow the mass to cross the boundaries of the system?
A. dynamics system
B. Open system
C. Closed system
D. statics system
closed system
Which of the following is NOT an extensive property?
A. Kinetic Energy
B. Momentum
C. Mass
D. Density
Density
Which of the following is NOT an intensive property?
A. Kinetic Energy
B. Momentum
C. Mass
D. All of these
All of these
Which of the following is NOT an intensive property
A. velocity
B. volume
C. pressure
D. temperature
volume
Which is the correct formula for converting degrees F to degrees C?
A. C = (F + 32) x (9/5)
B. F = (C - 32) x (5/9)
C. C = (F - 32) x (5/9)
D. C = (F - 32) x (9/5)
C = (F - 32) x (5/9)
First law of Thermodynamics is also known as
A. Conservation of Heat
B. Heat Transfer
C. Conservation of Energy
D. Utilization of Energy
Conservation of Energy
What law asserts that energy has quality as well quantity?
A. First law of thermodynamics
B. Zeroth law of thermodynamics
C. Third law of thermodynamics
D. Second law of thermodynamics
Second law of thermodynamics
What is the origin of the energy conservation equation used in flow systems?
A. Newton’s first law of motion
B. Newton’s second law of motion
C. the first law of thermodynamics
D. the second law of thermodynamics
the first law of thermodynamics
Relationship between temperature and pressure at constant volume.
A. Henry’s law
B. Charle’s law
C. Gay Isaac’s law
D. Boyle’s law
Gay Isaac’s law
In an ideal gas, the temperature increased to twice its original temperature while volume remains constant. What is the relative change in pressure?
A. 25%
B. 50%
C. 100%
D. 200%
100%
Which one of the following is standard temperature and pressure (STP)?
A. 0 K and one atmosphere pressure
B. 0°F and zero pressure
C. 32°F and zero pressure
D. 0°C and one atmosphere pressure
0°C and one atmosphere pressure
The standard volume at STP of one mole is
A. 24.2 L
B. 22.4 L
C. 42.4 L
D. 44.2 L
22.4 L
A process in which pressure is constant.
A. Isobaric
B. Isochoric
C. Isometric
D. Isothermal
Isobaric
Adiabatic process is?
A. no heat transfer
B. reversible
C. irreversible
D. constant pressure
no heat transfer
Which of the following engines is the most efficient?
A. gasoline engine
B. diesel engine
C. gas turbine
D. Carnot Engine
Carnot Engine
Which of the following does not transfer work to or from a system?
A. A moving piston
B. The expanding membrane of a balloon
C. An electrical resistance heater
D. A membrane that bursts
A membrane that bursts
The critical points for a mixture occurs for which of the following cases?
A. The vapor and liquid have a single form.
B. The liquid has no absorbed gas.
C. The vapor phase is stable.
D. The liquid is completely vaporized
The vapor and liquid have a single form.
Reactions generally proceed faster at higher temperature because of which of the following?
A. The molecules collide more frequently
B. The activation energy is less
C. The molecules are less energetic
D. Both A and B
Both A and B
Which of the following is the definition of Joule?
A. a unit of power
B. a newton-meter
C. a kg-m/s2
D. a rate of change of energy
a newton-meter
The unit of joule can be converted to which of the following?
A. Pam²
B. N-kg
C. Pam^3
D. Pa/m²
Pa*m^3
