Description : An adiabatic process in which there is no change in system enthalpy but for which there is a significant decrease in pressure is called _____. A. Isochoric process B. Isobaric process C. Throttling process D. Quasistatic process
Last Answer : Throttling process
Description : Most cooking activities involve _________ process. a. Isochoric b. Isothermal c. Isobaric d. Isovolumic
Last Answer : Isobaric
Description : No volume changes occur during this type of process a. Isobaric process b. Isomillimetric process c. Isocaloric process d. Isochoric process
Last Answer : Isochoric process
Description : A process during which entropy remains constant is called ______ process A. Isometric B. Isochoric C. Isobaric D. Isentropic
Last Answer : Isentropic
Description : What is a process during which the specific volume remains constant? A. Isobaric process B. Isothermal process C. Isochoric or isometric process D. Isovolumetric process
Last Answer : Isochoric or isometric process
Description : What is a process during which the pressure remains constant? A. Isobaric process B. Isothermal process C. Isochoric process D. Isometric process
Last Answer : Isobaric process
Description : What is a process during which the temperature remains constant? A. Isobaric process B. Isothermal process C. Isochoric process D. Isometric process
Last Answer : Isothermal process
Description : A ______ is a flow in which the gas flow is adiabatic and frictionless and entropy change is zero. A. Isentropic flow B. Isobaric flow C. Steady flow D. Uniform flow
Last Answer : Isentropic flow
Description : It is a process during which the pressure remains constant a. Adiabatic b. Isentropic c. Isobaric d. Isotropic
Description : When the expansion of compression of gas takes place without transfer of heat or from the gas the process is called; a. Isometric process b. Isothermal process c. Isobaric process d. Adiabatic process
Last Answer : Adiabatic process
Description : Another name of reversible adiabatic process a. Isentropic Process b. Isometric Process c. Isobaric Process d. Isothermal Process
Last Answer : Isentropic Process
Description : If there is no heat transferred during the process, it is called a ______ process. A. Static B. Isobaric C. Polytropic D. Adiabatic
Last Answer : Adiabatic
Description : Which of the following engines is the most efficient? a. Isobaric expansion b. Adiabatic compression c. Adiabatic expansion d. Isothermal expansion
Last Answer : Isobaric expansion
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
Last Answer : Gibbs free energy
Description : _________ is defined as that equivalent to the pressure due to a column of mercury 76cm long. a. surface pressure b. gage pressure c. standard atmospheric pressure d. isobaric pressure
Last Answer : standard atmospheric pressure
Description : Open system is also known as _________. a. isolated system b. closed container c. control mass d. control volume
Last Answer : control volume
Description : Isochoric process is one in which (a) free expansion takes place (b) very little mechanical work is done by the system (c) no mechanical work is done by the system (d) all parameters remain constant
Last Answer : Answer : c
Description : Heating of water under atmospheric pressure is an __________ process. (A) Isochoric (B) Isobaric (C) Adiabatic (D) Isothermal
Last Answer : (B) Isobaric
Description : Change of state namely evaporation condensation, freezing and melting is an __________ process. (A) Isothermal (B) Adiabatic (C) Isobaric (D) Isochoric
Last Answer : (A) Isothermal
Description : Represent Isobaric, Isochoric, Isothermal, Adiabatic process on P-V and T-S diagram.
Last Answer : Isobaric process Isothermal process Isochoric process Adiabatic process:
Description : During the adiabatic process, which of the following is the change in entropy? a. zero b. greater than zero c. less than zero d. infinity
Last Answer : zero
Description : During adiabatic, internally reversible process, what is true about the change in entropy? A. It is temperature-dependent B. It is always greater than zero C. It is always zero D. It is always less than zero
Last Answer : It is always zero
Description : How does an adiabatic process compare to an isentropic process? A. Adiabatic heat transfer is not equal to zero; isentropic heat transfer is zero B. Both heat transfer = 0; isentropic: reversible ... is not equal to zero D. Both heat transfer is not equal to zero; isentropic: irreversible
Last Answer : Both heat transfer = 0; isentropic: reversible
Description : For reversible adiabatic process, change in entropy is (a) maximum (b) minimum (c) zero (d) unpredictable (e) negative
Description : What is another term used for isometric processes? a. Isochoric process b. Iolytropic process c. Isothermal process d. Reversible process
Description : Adiabatic heating and Adiabatic cooling really means _________ and _________ respectively. a. raising the temp and lowering the temp b. maintaining the pressure and changing the temperature c. decreasing the volume and increasing the pressure d. lowering the temp and raising the temp
Last Answer : raising the temp and lowering the temp
Description : A closed system is also known as _________. a. isolated system b. closed container c. control mass d. control volume
Last Answer : control mass
Description : The propagation of sound waves in a gas involves – (1) Adiabatic compression and rarefaction (2) Isothermal compression and rarefaction (3) Isochoric compression and rarefaction (4) Isobaric compression and rarefaction
Last Answer : (1) Adiabatic compression and rarefaction Explanation: Sound is a mechanical wave that is an oscillation of pressure transmitted through a solid, liquid, or gas, composed of frequencies within the ... . Through solids, however, it can be transmitted as both longitudinal waves and transverse waves.
Last Answer : (1) Adiabatic compression and rarefaction Explanation: Sound is a mechanical wave that is an oscillation of pressure transmitted through a solid, liquid, or gas, composed of frequencies within ... is transmitted through gases, plasma, and liquids as longitudinal waves, also called compression waves.
Description : The propagation of sound waves in a gas involves (1) adiabatic compression and rarefaction (2) isothermal compression and rarefaction (3) isochoric compression and rarefaction (4) isobaric compression and rarefaction
Last Answer : adiabatic compression and rarefaction
Description : The processes occuring in open system which permit the transfer of mass to and from the system, are known as A.flow processes B.non-flow processes C.adiabatic processes D.none of these
Last Answer : Answer: A
Description : Work done in an adiabatic process between a given pair of end states depends on (a) the end states only (b) particular adiabatic process (c) the value of index n (d) the value of heattransferred (e) mass of the system.
Last Answer : Answer : a
Description : Boiling temperature of a material is dependent on its _________. a. volume b. power c. heat d. pressure
Last Answer : pressure
Description : The temperature at which the vapor pressure exactly equals one atm is called _________. a. boiling temperature b. normal boiling point c. triple point d. point of infliction
Last Answer : normal boiling point
Description : If a fluid expands suddenly into vacuum through an orifice of large dimension, then such a process is called (a) free expansion (b) hyperbolic expansion (c) adiabatic expansion (d) parabolic expansion (e) throttling.
Description : A unit of pressure used in high vacuum technology, which is equal to 1mmhg. a. specific heat b. isometric c. isobaric d. torr
Last Answer : torr
Description : What type of pressure cannot be used for Boyle’s Law? a. Atmospheric Pressure b. Gauge Pressure c. Surface Pressure d. Isobaric Pressure
Last Answer : Gauge Pressure
Description : What gas thermometer is based on the principle that at low pressure, the temperature of a gas is proportional to its pressure at constant volume? A. Constant-pressure gas thermometer B. Isobaric gas thermometer C. Isometric gas thermometer D. Constant-volume gas thermometer
Last Answer : Constant-volume gas thermometer
Description : The term _________ is traditionally used to describe steam issuing from condensate receiver vents and openended condensate discharge lines from steam traps. a. dry steam b. wet steam c. phase steam d. flash steam
Last Answer : flash steam
Description : In __________ process, there is an increase in entropy with no degradation of energy. (A) Isothermal expansion (B) Isochoric heat addition (C) Polytropic expansion (D) Isobaric heat addition
Last Answer : (A) Isothermal expansion
Description : A thermodynamic process in which entropy is conserved a. isentropic b. adiabatic c. isothermal d. polytropic
Last Answer : isentropic
Description : When the expansion of compression of gas takes place without transfer of heat to or from the gas the process is called a. reversible b. adiabatic c. polytropic d. isothermal
Last Answer : adiabatic
Description : Is a steady flow process at total constant pressure through a control volume for which there is no heat? a. Adiabatic Saturation Process b. Dew point c. Adiabatic Ratio d. None of the above
Last Answer : Adiabatic Saturation Process
Description : The process that has no heat transfer a. Density b. Isentropic Process c. Isometric Process d. Adiabatic
Description : The term “isentropic process” used in thermodynamics implies what? A. Reversible adiabatic process B. Externally reversible, adiabatic process C. Internally reversible, adiabatic process D. Irreversible adiabatic process
Last Answer : Internally reversible, adiabatic process
Description : “A reversible adiabatic process is necessarily isentropic but an isentropic process is not necessarily reversible adiabatic process.” This statement is: A. True B. False C. May be true and may be false D. Absurd
Last Answer : True
Description : A process, in which the temperature of the working substance remains constant during its expansion or compression, is called A. isothermal process B. hyperbolic process C. adiabatic process D. polytropic process
Description : If the value of n = 0 in the equation pvn = C, then the process is called A. constant volume process B. adiabatic process C. constant pressure process D. isothermal process
Last Answer : Answer: C
Description : An adiabatic process is one in which A.no heat enters or leaves the gas B.the temperature of the gas changes C.the change in internal energy is equal to the mechanical workdone D.all of the above
Last Answer : Answer: D
Description : Which of the following processes is irreversible process (a) isothermal (b) adiabatic (c) throttling (d) all of the above (e) none of the above.