Chemical engineering thermodynamics is concerned with the __________ in/of chemical processes.
(A) Reaction mechanism
(B) Calculation of rates
(C) Energy transformation from one form to another
(D) None of these

1 Answer

Answer :

(C) Energy transformation from one form to another

Related questions

Description : Second law of thermodynamics is concerned with the (A) Amount of energy transferred (B) Direction of energy transfer (C) Irreversible processes only (D) Non-cyclic processes only

Last Answer : (B) Direction of energy transfer

Description : An engineering science primarily concerned with heat and work conversions.  a. Thermodynamics  b. Mechanics  c. Physics  d. Electromagnetic

Last Answer : Thermodynamics

Description : Answer: b Metabolic response to injury results in increased energy expenditure. If energy intake is less than expenditure, oxidation of body fat stores and erosion of lean body mass will occur ... requirements, caloric requirements should be distributed at a ratio of 70% as glucose and 30% as fat

Last Answer : Which of the following statement(s) is/are true concerning body fuel reserves? a. The largest fuel reserve in the body is skeletal muscle b. Fat provides about 9 calories/gram c. Free glucose and glycogen stores are a trivial fuel reserve d. Body protein is a valuable storage form of energy

Description : What is the term for the energy responsible for the variations in the reaction rates of chemical processes?

Last Answer : It's hard to know precisely what is meant by this question. You may be thinking of activation energy, the minimum energy needed to start the reaction, which explains why one reaction may go ... reaction going faster and slower depending on the energy supply, then that's most often thermal energy.

Description : __________ explains the mechanism of catalysis. (A) Activated complex theory (B) Collision theory (C) Thermodynamics (D) None of these

Last Answer : (A) Activated complex theory

Description : Study of transformation of heat energy to mechanical energy to other forms of energy.  a. Thermodynamics  b. Physics  c. Mechanics  d. None of the above

Last Answer : Thermodynamics

Description : Thermodynamics is the study of heat and its transformation which stems from Greek words meaning _________.  a. transformation of heat  b. transformation of energy  c. movement of heat  d. movement of matter

Last Answer : movement of heat

Description : (i)State why heat changes in physical and chemical processes are indicated by enthalpy changes and not by entropy changes? (ii)What are the limitations of First Law of thermodynamics?

Last Answer : (i) Most of the processes are carried out in an open system i.e, at constant pressure. (ii)(a) Can’t explain the feasibility of the reaction. (b)It poses no restriction on the direction of flow of heat. (c)Practically it is not possible to convert the heat energy into an equivalent amount of work.

Description : First law of thermodynamics deals with the (A) Direction of energy transfer (B) Reversible processes only (C) Irreversible processes only (D) None of these

Last Answer : (A) Direction of energy transfer

Description : _________ does not change during phase transformation processes like sublimation, melting & vaporisation. (A) Entropy (B) Gibbs free energy (C) Internal energy (D) All (A), (B) & (C)

Last Answer : (B) Gibbs free energy

Description : The first law of thermodynamics is concerned with the conservation of w) energy x) momentum y) charge z) matter

Last Answer : ANSWER: W -- ENERGY

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 : "If different processes are used to bring about the same chemical reaction, the enthalpy change is same for all of them". This is __________ law. (A) Hess's (B) Kirchoff's (C) Lavoisier and Laplace (D) None of these

Last Answer : (A) Hess's

Description : Third law of thermodynamics is helpful in (A) Prediction of the extent of a chemical reaction (B) Calculating absolute entropies of substances at different temperature (C) Evaluating entropy changes of chemical reaction (D) Both (B) and (C)

Last Answer : D) Both (B) and (C)

Description : The process of identifying the probability of occurrence of a natural hazard of a given intensity at a specific location based on an analysis of natural processes and site conditions is termed as- (a) Disaster calculation (b) Hazard Assessment (c) Hazard calculation (d) None of the above

Last Answer : (b) Hazard Assessment

Description : Some of the criteria for calculation of priority of a process are: a. Processor utilization by an individual process. b. Weight assigned to a user or group of users. c. Processor utilization by a user or group of processes. In fair share ... (a) and (c) (3) (a), (b) and (c) (4) only (b) and (c)

Last Answer : (3) (a), (b) and (c)

Description : A catalyst in a chemical reaction (A) Decreases the activation energy (B) Alters the reaction mechanism (C) Increases the frequency of collisions of reacting species (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Description : The first law of thermodynamics is concerned with the conservation of which thing? -General Knowledge

Last Answer : The answer is 'Energy'

Description : The first law of thermodynamics is concerned with the conservation of which thing? -General Knowledge

Last Answer : answer:

Description : The first law of thermodynamics is concerned with the conservation of

Last Answer : The first law of thermodynamics is concerned with the conservation of A. Total energy of a ... chemical change D. Mass changes in nuclear reactions

Description : The first law of thermodynamics is concerned with the conservation of which thing?

Last Answer : Energy

Description : The first law of thermodynamics is concerned with the conservation of which thing?

Last Answer : Energy

Description : The area of thermodynamics concerned with the measuring of thermal properties is called what?

Last Answer : ANSWER: CALORIMETRY

Description : What Is The Importance Of The Thermodynamics In The Field Of Mechanical Engineering?

Last Answer : All the mechanical engineering systems are studied with the help of thermodynamics. Hence it is very important for the mechanical engineers.

Description : Overall rate of reaction in a heterogeneous catalytic reaction depends upon the mass and energy transfer from the fluid to solid surface and its rate of reaction is usually __________ the concentration of ... to (B) Independent of (C) Inversely proportional to (D) Proportional to the square o

Last Answer : (A) Proportional to

Description : Of the following which is the most important mechanism of concurrent acquisition of multidrug resistance among bacteria ? (a) Mutation (b) Conjugation (c) Transduction (d) Transformation

Last Answer : Ans: B

Description : The most important mechanism of concurrent acquisition of multidrug resistance among bacteria is: A. Mutation B. Conjugation C. Transduction D. Transformation

Last Answer : B. Conjugation

Description : Which of the following is the best explanation of business process reengineering? A. Redesigning the organizational structure of a business B. Redesigning workflow C. Redesigning products D. Transformation of business processes for more effective achievement of business goals

Last Answer : D. Transformation of business processes for more effective achievement of business goals

Description : Which one of the following statements regarding a catalyst is not correct? A An enzyme is a catalyst that only binds certain substrates. B An enzyme is a protein that is a highly ... increasing the activation energy. D Catalysts do not alter the equilibrium constant for a chemical reaction.

Last Answer : C Catalysts increase the rate of a reaction by altering the mechanism, thereby increasing the activation energy.

Description : The Graetz number is concerned with the (A) Mass transfer between a gas and a liquid (B) Absorption with chemical reaction (C) Heat transfer in turbulent flow (D) Heat transfer in laminar flow

Last Answer : (D) Heat transfer in laminar flow

Description : A trickle bed reactor is the one, which (A) Has altogether three streams either entering or leaving (B) Processes three reactants at different flow rates (C) Processes three reactants with same flow rate (D) Employs all the three phases (i.e. solid, liquid and gas)

Last Answer : (D) Employs all the three phases (i.e. solid, liquid and gas)

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 : The principle that energy may be converted from one form to another but it cannot be either created or destroyed is: w) First Law of Thermodynamics. x) Second Law of Thermodynamics. y) Third Law of Thermodynamics. z) Principle of photoelectricity.

Last Answer : ANSWER: W -- FIRST LAW OF THERMODYNAMICS.

Description : A rise in temperature (A) Normally tends to increase the reaction rate (B) Does not affect a catalysed reaction (C) Does not affect photo-chemical reaction rates (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Description : Out of the following processes of paper pulp manufacture, the maximum corrosion problem in digestion & handling equipments is encountered in the __________ process. (A) Mechanical (B) Sulphate/Kraft (C) Sulphite (D) Neutral sulphite semi-chemical

Last Answer : (D) Neutral sulphite semi-chemical

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 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 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 important dimensional group involved in the power requirement calculation in mixing operation is the __________ number. (A) Reynold's (B) Froude (C) Both (A) & (B) (D) Neither (A) nor (B)

Last Answer : (C) Both (A) & (B)

Description : In McCabe-Thiele method of theoretical plate calculation for a distillation column, the operating lines of stripping and rectifying sections coincide with the diagonal at __________ reflux. (A) Total (B) Minimum (C) Operating (D) Maximum permissible

Last Answer : (A) Total

Description : Calculation of mass transfer co-efficient is mostly/normally done using __________ theory. (A) Surface renewal (B) Film (C) Penetration (D) None of these

Last Answer : (B) Film

Description : Annual depreciation cost are not constant when, the __________ method of depreciation calculation is used. (A) Straight line (B) Sinking fund (C) Present worth (D) Declining balance

Last Answer : (D) Declining balance

Description : Thermal equivalent of electrical power in practical calculation is __________ kcal/kWh. (A) 746 (B) 3000 (C) 1000 (D) 550

Last Answer : (B) 3000

Description : Which branch of science deals with the transformation of chemical energy into electrical energy and vice versa ?

Last Answer : Electrochemistry

Description : In an electric motor, the energy transformation is from _______. (1) electrical to chemical (2) chemical to light (3) mechanical to electrical (4) electrical to mechanical

Last Answer : (4) electrical to mechanical Explanation: An electric motor is an electrical machine that converts electrical energy into mechanical energy. The reverse of this would be the conversion of mechanical energy into electrical energy and is done by an electric generator.

Description : The science concerned with processes, functions, plant responses to external stimulus and growth and development of plant.

Last Answer : Ans. Plant Physiology

Description : A malignant tumor a) gains access to the blood and lymphatic channels. By this mechanism, the tumor metastasizes to other areas of the body. b) demonstrates cells that are well- ... malignant tumor grows at the periphery and sends out processes that infiltrate and destroy surrounding tissues.

Last Answer : a) gains access to the blood and lymphatic channels. By this mechanism, the tumor metastasizes to other areas of the body.

Description : Why might a structural functionalist be concerned about high school dropout rates?

Last Answer : Students who drop out of school are less able to apply their skills and knowledge to benefit society -APEX

Description : Which of the following statements about the role of the gut in shock and sepsis are true? A. Selective decontamination of the digestive tract with the use of oral antibiotics has been ... As compared with parenteral nutrition, enteral nutrition is associated with a reduction in septic morbidity.

Last Answer : Answer: BCD DISCUSSION: The gut has a vital role in the pathophysiology of shock. The splanchnic circulation is very vulnerable to the circulatory redistribution that occurs in shock, thus, gut ... , enteral feeding is more cost effective and is associated with a lower rate of septic morbidity