The contact surface shared by both the system and the surroundings is called _________.  a. wall  b. boundary  c. interface  d. intersection

The contact surface shared by both the system and the surroundings is called _________.  a. wall  b. boundary  c. interface  d. intersection
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What is the real or imaginary surface that separates the system from its surroundings?  A. Division  B. Wall  C. Boundary  D. Interface

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The boundaries of a control volume, which may either real or imaginary is called _____.  A. Control boundary  B. Control system  C. Interface  D. Control surface

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An open system is one in which  (a) mass does not cross boundaries of the system, though energy may do so  (b) neither mass nor energy crosses the boundaries of the system  (c) both energy and mass cross the boundaries of the system  (d) mass crosses the boundary but not the energy  (e) thermodynamic reactions do not occur.

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Gas is enclosed in a cylinder with a weighted piston as the stop boundary. The gas is heated and expands from a volume of 0.04 m^3 to 0.10 m^3 at a constant pressure of 200kPa.Calculate the work done by the system.  A. 8 kJ  B. 10 kJ  C.12 kJ  D.14 kJ Formula: W = p(V2-V1)

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The flow energy of 150 L of a fluid passing a boundary to a system is 110 kJ. Determine the pressure at this point  a. 733.33 kPa  b. 833.33 kPa  c. 933.33 kPa  d. 633.33 kPa

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Last Answer : 12 kJ

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A closed system is one in which heat and work crosses the boundary of the system but the mass of the working substance does not crosses the boundary of the system.  A. Yes  B. No

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The total energy of a molecule is shared equally by the various degrees of freedom possessed by it. This law is known as  A. law of equipartition of energy  B. law of conservation of energy  C. law of degradation of energy  D. none of these

Description : The total energy of a molecule is shared equally by the various degrees of freedom possessed by it. This law is known as  A. law of equipartition of energy  B. law of conservation of energy  C. law of degradation of energy  D. none of these

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A wall of the firebrick has an inside temperature of 313ºF and an outside temperature of 73ºF. What is the difference in the surface temperature in Rankin?  a. 70  b. 68  c. 72  d. 94 ºR = ºF + 460

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Intensive properties of a system are called _________.  a. Bulk Properties  b. Innate Properties  c. Natural Properties  d. Inside Properties

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Open system is also known as _________.  a. isolated system  b. closed container  c. control mass  d. control volume

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A closed system is also known as _________.  a. isolated system  b. closed container  c. control mass  d. control volume

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_________ is a thermodynamic potential that measures the “useful” or process-initiating work obtainable from an isothermal, isobaric thermodynamic system.  a. Du-Pont Potential  b. Gibbs free energy  c. Rabz-Eccles Energy  d. Claussius Energy

Description : _________ is a thermodynamic potential that measures the “useful” or process-initiating work obtainable from an isothermal, isobaric thermodynamic system.  a. Du-Pont Potential  b. Gibbs free energy  c. Rabz-Eccles Energy  d. Claussius Energy

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In thermodynamics, a throttling process, also called a _________, is a type of isenthalpic process where a liquid or gas is cooled as it passes from a higher pressure state to a lower pressure state.  a. Rankine Process  b. Carnot Cycle  c. Joule-Thomson process  d. Refrigeration process

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_________ is the unit of pressure and stress.  a) Newton  b) Pascal  c) Hertz  d) Joule

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_________ is the energy stored within a body or substance by virtue of the activity and configuration of its molecules.  a. Internal Energy  b. External Energy  c. Kinetic Energy  d. Potential Energy

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The most efficient cycle that can operate between two constant temperature reservoir is the _________.  a. Otto Cycle  b. Lazare Cycle  c. Isothermal Cycle  d. Carnot Cycle

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One calorie is equal to _________.  a. 1/180 W.h  b. 1/860 W.h  c. 1/360 W.h  d. 1/250 W.h

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Last Answer : 1/860 W.h

Gasoline and Diesel Engines are best described by the _________.  a. Otto Cycle  b. Burnign Cycle  c. Shikki Cycle  d. Shapa R’ Elli Cycle

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_________ is the temperature to which the air must be cooled, at constant pressure, to produce saturation.  a. relative humidity  b. triple point temperature  c. dew point  d. critical point

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Last Answer : dew point

The speed at which a liquid escapes from a vessel through an orifice is given by _________.  a. Archimedes Principle  b. Evangelista’s Law  c. Torricelli’s Theorem  d. Bernoulli’s Equation

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To displace a cubic foot of fresh water, you need _________ force.  a. 62.4 lb  b. 9.81 lb  c. 76 lb  d. 760 lb

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If any external pressure is applied to a confined fluid, the pressure will be increased at every point in the fluid by the amount of the external pressure is known as _________.  a. Torricelli’s law  b. Barometric law  c. Newton’s Second law  d. Pascal’s law

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_________ is the average distance a molecule moves before colliding with another molecule.  a. mean free path  b. path allowance  c. compacting factor  d. molecular space

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The statement “heat cannot by itself flow from one body into a hotter body” is governed by _________.  a. the first law of thermodynamics  b. the second law of thermodynamics  c. the third law of thermodynamics  d. the zeroth law of thermodynamics

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Most cooking activities involve _________ process.  a. Isochoric  b. Isothermal  c. Isobaric  d. Isovolumic

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