Description : What states that the net change in the total energy of the system during a process is equal to the difference between the total energy entering and the total energy leaving the system during ... Conservation of energy principle C. Second law of thermodynamics D. Conservation of mass principle
Last Answer : Conservation of energy principle
Description : What states that the net mass transfer to or from a system during a process is equal to the net change in the total mass of the system during that process? A. Third law of thermodynamics B. Conservation of energy principle C. Second law of thermodynamic D. Conservation of mass principle
Last Answer : Conservation of mass principle
Description : Which of the following laws of thermodynamic which leads to the definition of entropy? a. First law b. Second law c. Third law d. Law of conservation of energy
Last Answer : Second law
Description : The first law of thermodynamics is based on which of the following principles? a. Conservation of mass b. Conservation of energy c. Action and reaction d. The entropy-temperature relationship
Last Answer : Conservation of energy
Description : The 1st Law of Thermodynamics on what principle? a. Conservation of Energy b. Conservation of mass c. Enthalpy d. Isometric
Last Answer : Conservation of Energy
Description : Heat cannot be created, nor destroyed, but it can be changed from one form to another. The energy in the universe remains constant. a. 1st Law of Energy Conservation b. 2nd Law of Energy Conservation c. 3rd Law of Energy Conservation d. None of the above
Last Answer : 1st Law of Energy Conservation
Description : It states that mass is a commodity that can neither be heated nor destroyed with the exception of nuclear processes where the conversion of mass into energy is a fundamental principle a. Law of ... Conservation of Energy c. Law of Conservation of Power d. Law of Conservation of Heat
Last Answer : Law of Conservation of Mass
Description : The first law of thermodynamics is based on which of the following principles? a. conservation of mass b. the enthalpy-entropy relationship c. action – reaction d. conservation of energy
Last Answer : conservation of energy
Description : The first law of thermodynamics is the: A. Law of conservation of momentum B. Law of conservation of mass C. Law of conservation of power D. Law of conservation of energy
Last Answer : Law of conservation of energy
Description : The first law of thermodynamics is based on which of the following principles? A. Conservation of mass B. Conservation of energy C. Action and reaction D. The entropy-temperature relationship
Description : The first law of thermodynamics is the law of (a) conservation of mass (b) conservation of energy (c) conservation of momentum (d) conservation of heat (e) conservation of temperature.
Last Answer : Answer : b
Description : What is known as the total heat and heat content at various times in the history? a. enthalpy b. entropy c. internal energy d. latent heat
Last Answer : enthalpy
Description : Which of the following statements is TRUE for an ideal gas, but not for a real gas? A. PV = nRT B. An increase in temperature causes an increase in the kinetic energy of the gas C. The ... same as the volume of the gas as a whole D. No attractive forces exists between the molecule of a gas
Last Answer : PV = nRT
Description : The equation Ein – Eout = E∆ system is known as ______. A. Energy conservation B. Energy equation C. Energy balance D. Energy conversion equation
Last Answer : Energy balance
Description : The law of conservation of mass states that ______. a. mass is indestructible b. mass is destructible c. mass is indestructible d. none of the above
Last Answer : mass is indestructible
Description : Kelvin-Planck’s law deals with A. conservation of work B. conservation of heat C. conversion of heat into work D. conversion of work into heat
Last Answer : Answer: C
Description : Kelvin Planck’s law deals with (a) conservation of heat (b) conservation of work (c) conversion of heat into work (d) conversion fo work into heat (e) conservation of mass.
Last Answer : Answer : c
Description : First law of thermodynamics furnishes the relationship between (a) heat and work (b) heat, work and properties of the system (c) various properties of the system (d) various thermodynamic processes (e) heat and internal energy.
Last Answer : (b) heat, work and properties of the system
Description : According to Avogadro's law, for a given pressure and temperature, each molecule of a gas (a) occupies volume proportional to its molecular weight (b) occupies volume proportional to its specific ... (d) occupies volume inversely proportional to its specific weight (e) occupies same volume.
Last Answer : Answer : e
Description : For same compression ratio and for same heat added (a) Otto cycle is more efficient than Diesel cycle (b) Diesel cycle is more efficient than Otto cycle (c) efficiency depends on other factors (d) both Otto and Diesel cycles are equally efficient (e) none of the above.
Last Answer : Answer : a
Description : Energy can neither created nor destroyed. It can only change forms. a. Conservation of Mass Principle b. Conservation of Energy Principle c. Conservation of Momentum Principle d. Conservation of Heat Principle
Last Answer : Conservation of Energy Principle
Description : The heat per unit mass per degree change in temperature a. specific heat b. isometric c. conservation of energy d. none of the above
Last Answer : specific heat
Description : The contact surface shared by both the system and the surroundings is called _________. a. wall b. boundary c. interface d. intersection
Last Answer : boundary
Description : “The total volume of a mixture of non-reacting gases is equal to the sum of the partial volumes.” This statement is known as ______. A. Law of Dulong and Petit B. Maxwell-Boltzmann law C. Amagat’s law D. Avogadro’s law
Last Answer : Amagat’s law
Description : The first law of thermodynamics may be expressed in the following equivalent a. the net heat transfer id equal to the network b. the sum of the total energy forms leaving the system boundary is ... neither be created nor destroyed but only converted from one form to another d. all of the above
Last Answer : all of the above
Description : In the first law of thermodynamics, the total energy of the system remains constant. A. True B. False
Last Answer : Answer: A
Description : According to first law of thermodynamics (a) work done by a system is equal to heat transferred by the system (b) total internal energy of a system during a process remains constant ( ... , enthalpy and entropy during a process remain constant (d) total energy of a system remains constant
Last Answer : Answer : d
Description : _________ is a measure of the average kinetic energy per molecule in a substance. a. movement b. temperature c. heat d. mass
Last Answer : temperature
Description : What is the internal energy associated with the atomic bonds in a molecule called? A. Chemical energy B. Latent energy C. Phase energy D. State energy
Last Answer : Chemical energy
Description : Total heat of a substance is also known as (a) internal energy (b) entropy (c) thermal capacity (d) enthalpy (e) thermal conductance.
Description : According to Dalton's law, the total pres sure of the mixture of gases is equal to (a) greater of the partial pressures of all (b) average of the partial pressures of all (c) sum ... all (d) sum of the partial pressures of all divided by average molecular weight (e) atmospheric pressure.
Description : _________ 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
Last Answer : mean free path
Description : What is defined as the quantity of heat needed to raise the temperature of one kilogram of water by one degrees Celsius? a. Kilojoule b. Btu c. Kilocalorie d. Latent heat
Last Answer : Kilocalorie
Description : ____________is the difference between the saturation temperature for the given pressure and the actual sub cooled liquid temperature. a) Degrees of Superheat, °SH b) Degrees of Sub cooled, °SB c) Both a and b d) None of the above
Last Answer : Degrees of Sub cooled, °SB
Description : _____________ is the difference between the actual temperature of superheated vapor and the saturation temperature for the existing pressure. a) Degrees of Superheat, °SH b) Degrees of Sub cooled, °SB c) Both a and b d) None of the above
Last Answer : Degrees of Superheat, °SH
Description : Steam is throttled to 0.1 MPa with 20 degrees of superheat. (a) What is the quality of throttled steam if its pressure is 0.75 MPa (b) What is the enthalpy of the process? a) 97.6%,2713 kJ/kg b) -97.6%, 2713 kJ/kg c) 87.6%,3713 kJ/kg d) -87.6%, 3713 kJ/kg
Last Answer : 97.6%,2713 kJ/kg
Description : Liquid hydrogen boils at 17 K. What is the temperature in degrees Celsius? a. 290 b. 63 c. -120 d. -256
Last Answer : -256
Description : A plot of pressure vs. temperature for a given substance showing the various phases possible for that particular substance. a. Phase diagram b. P-T diagram c. Wein Diagram d. Histogram
Last Answer : Phase diagram
Description : 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
Last Answer : Pascal’s law
Description : “At constant pressure, the volume of a gas is inversely proportional to the pressure”. This is known as ______. A. Boyle’s Law B. Charles’s Law C. Gay-Lussac Law D. Ideal gas law
Last Answer : Boyle’s Law
Description : The entropy change of a system during a process is equal to the net entropy transfer through the system boundary and the entropy generated within the system . This statement is known as: A. Entropy ... B. Entropy change of a system C. Entropy balance relation D. Third law of thermodynamics
Last Answer : Entropy balance relation
Description : A device that violates either the first law of thermodynamics or the second law of thermodynamics is known as _____. A. Ambiguous machine B. Universal machine C. Perpetual-motion machine D. Unique machine
Last Answer : Perpetual-motion machine
Description : What is sometimes known as the “Fourth-power law”? A. Kirchhoff’s radiation law B. Newton’s law of cooling C. Stefan-Boltzmann law D. Hess’s law
Last Answer : Stefan-Boltzmann law
Description : The measurement of a thermodynamic property known as temperature is based on A. Zeroth law of thermodynamics B. First law of thermodynamics C. Second law of thermodynamics D. none of these
Description : The absolute pressure of a given mass of a perfect gas varies inversely as its volume, when the temperature remains constant. This statement is known as Charles’ law. A. Yes B. No
Last Answer : Answer: B
Description : The statement that molecular weights of all gases occupy the same volume is known as (a) Avogadro’s hypothesis (b) Dalton’s law (c) Gas law (d) Law of thermodynamics (e) Joule’s law.
Description : What law asserts that energy has quality as well as quantity? A. First law of Thermodynamics B. Second law of Thermodynamics C. Third law of Thermodynamics D. Zeroth law of Thermodynamics
Last Answer : Second law of Thermodynamics
Description : What law asserts that energy is a thermodynamic property? A. First law of Thermodynamics B. Second law of Thermodynamics C. Third law of Thermodynamics D. Zeroth law of Thermodynamics
Last Answer : First law of Thermodynamics
Description : Which of the following is the correct statement of the second law of thermodynamics? A. It is impossible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy ... energy, which can be obtained from a given quantity of heat energy. D. all of the above
Last Answer : Answer: D