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# Second Law Of Thermodynamics Questions And Answers Pdf

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Published: 10.12.2020  Which of the following variables controls the physical properties of a perfect gas a pressure b temperature c volume d all of the above e atomic mass. Ans: d.

When heat flows from the reservoir to the ice, the internal mainly kinetic energy of the ice goes up, resulting in a higher average speed and thus an average greater position variance of the molecules in the ice. The reservoir does become more ordered, but due to its much larger amount of molecules, it does not offset the change in entropy in the system.

## 300 TOP MOST Thermodynamics – Mechanical Engineering Multiple choice Questions and Answers

The students those are preparing for the Govt. Which of the following variables controls the physical properties of a perfect gas. Which of the following laws is applicable for the behavior of a perfect gas. According to Gay-Lussac law for a perfect gas, the absolute pressure of given mass varies directly as. An ideal gas as compared to a real gas at very high pressure occupies. Which of the following can be regarded as gas so that gas laws could be applicable, within the commonly encountered temperature limits.

According to kinetic theory of gases, the absolute zero temperature is attained when. Kinetic theory of gases assumes that the collisions between the molecules are.

Kinetic energy of the molecules in terms of absolute temperature T is proportional to. The condition of perfect vacuum, i. Specific heat of air at constant pressure is equal to.

Intensive property of a system is one whose value. Characteristic gas constant of a gas is equal to. The behaviour of gases can be fully determined by. The ratio of two specific heats of air is equal to. Which law states that the internal energy of a gas is a function of temperature. Which law states that the specific heat of a gas remains constant at all temperatures and pressures. The same volume of all gases would represent their. Extensive property of a system is one whose value.

The statement that molecular weights of all gases occupy the same volume is known as. If a gas is heated against a pressure, keeping the volume constant, then work done will be equal to. To convert volumetric analysis to gravimetric analysis, the relative volume of each constituent of the flue gases is. Properties of substances like pressure, temperature and density, in thermodynamic coordinates are. Which of the following quantities is not the property of the system. On weight basis, air contains following parts of oxygen.

Which of the following is the property of a system. Which of the following is not the intensive property. Which of the following items is not a path function. Work done in an adiabatic process between a given pair of end states depends on. Which of the following parameters is constant for a mole for most of the gases at a given temperature and pressure.

The final temperature is. The index of compression n tends to reach ratio of specific heats y when. A heat exchange process in which the product of pressure and volume remains constant is known as. Change in enthalpy of a system is the heat supplied at. In an isothermal process, the internal energy of gas molecules. The basis for measuring thermodynamic property of temperature is given by. The work done will be about.

For which of the following substances, the gas laws can be used with minimum error. On volume basis, air contains following parts of oxygen. The value of the product of molecular weight and the gas characteristic constant for all the gases in M.

Universal gas constant is defined as equal to product of the molecular weight of the gas and. For which of the following substances, the internal energy and enthalpy are the functions of temperature only. The value of the product of molecular weight and the gas characteristic constant for all the gases in S. If a gas vapour is allowed to expand through a very minute aperture, then such a process is known as.

If a fluid expands suddenly into vacuum through an orifice of large dimension, then such a process is called. The specific heat of air increases with increase in.

Which of the following processes are thermodynamically reversible. In order that a cycle be reversible, following must be satisfied. Which of the following processes is irreversible process. For a thermodynamic process to be reversible, the temperature difference between hot body and working substance should be. Minimum work in compressor is possible when the value of adiabatic index n is equal to.

A gas is compressed in a cylinder by a movable piston to a volume one-half its original volume. During the process kJ heat left the gas and internal energy remained same. The work done on gas in Nm will be. The more effective way of increasing efficiency of Carnot engine is to. For reversible adiabatic process, change in entropy is. Energy can neither be created nor destroyed but can be converted from one form to other is inferred from. First law of thermodynamics furnishes the relationship between.

Change in enthalpy in a closed system is equal to heat transferred if the reversible process takes place at constant. Change in internal energy in a closed system is equal to heat transferred if the reversible process takes place at constant. Addition of heat at constant pressure to a gas results in. If heat be exchanged in a reversible manner, which of the following property of the working substance will change accordingly. Which of the following represents the perpetual motion of the first kind.

If a system after undergoing a series of processes, returns to the initial state then. An actual engine is to be designed having same efficiency as the Carnot cycle. Such a proposition is. A manufacturer claims to have a heat engine capable of developing 20 h. His claim is. The door of a running refrigerator inside a room was left open.

Which of the following statements is correct? Compressed air coming out from a punctured football. Water contained in a beaker can be made to boil by passing steam through it. One barometric pressure or 1 atmospheric pressure is equal to. According to Clausis statement of second law of thermodynamics. Which of the following is an irreversible cycle. Otto cycle consists of following four processes. For same compression ratio and for same heat added.

Diesel cycle consists of following four processes. If both Stirling and Carnot cycles operate within the same temperature limits, then efficiency of Stirling cycle as compared to Carnot cycle. A cycle consisting of two adiabatics and two constant pressure processes is known as. Which of the following cycles is not a reversible cycle.

The efficiency of Diesei cycle with decrease in cut off. The cycle in which heat is supplied at constant volume and rejected at constant pressure is known as. Which of the following cycles has maximum efficiency. The ideal efficiency of a Brayton cycle without regeneration with increase ni pressure ratio will. Answer : a The following cycle is used for air craft refrigeration. The thermodynamic difference between a Rankine cycle working with saturated steam and the Carnot cycle is that. ## Second Law of Thermodynamics - Mechanical Engineering (MCQ) questions and answers

Mcq on convection heat transfer objectives questions December 19, In this mechanical engineering lecture today we learned about heat transfer subjects Mcq on convection heat transfer objectives questions Third law of thermodynamics. Heat of combustion of methane and ethane are A pinoybix mcq, quiz and reviewers. Thermodynamics is a branch of Physics that helps in understanding heat and temperature and their relation with work, energy, radiation, and other properties of matter. The temperature of the calorimeter was found to increase from According to Kelvin plank statement No; Answer: A. ## 300 TOP MOST Thermodynamics – Mechanical Engineering Multiple choice Questions and Answers

Problem sets First Law of Thermodynamics One of the trusted Educational Blog.

The students those are preparing for the Govt. Which of the following variables controls the physical properties of a perfect gas. Which of the following laws is applicable for the behavior of a perfect gas.

Physics Class 11 Important Questions are very helpful to score high marks in board exams. Physics Important Questions Class 11 are given below.. All the commercial liquid fuels are derived from natural petroleum or crude oil. Therefore, A refrigerator is a device, which operates in a cycle and maintains the temperature a particular body lower than the surrounding temperature.

### Mcq-thermodynamics Second Law of Thermodynamics

Thermodynamics Second Law of Thermodynamics 1. According to Kelvin-Plancks statement of 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 into work b It is possible to construct an engine working on a cyclic process, whose sole purpose is to convert the heat energy into work c It is impossible to construct a device which while working in a cyclic process produces no ef f ect other than the transf er of heat f rom a colder body to a hotter body d When two dissimilar metals are heated at one end and cooled at the other, the e. T he property of a working substance which increases or decreases as the heat is supplied or removed in a reversible manner is known as a enthalpy b internal energy c entropy d external energy. T he entropy may be expressed as a f unction of a pressure and temperature b temperature and volume c heat and work d all of the above e none of the above.

Выходит, нас атакует всего лишь первый набросок червя Танкадо. - Набросок или отшлифованный до блеска экземпляр, - проворчал Джабба, - но он дал нам под зад коленом. - Не верю, - возразила Сьюзан.  - Танкадо был известен стремлением к совершенству. Вы сами это знаете. Он никогда не оставил бы жучков в своей программе. - Их слишком много! - воскликнула Соши, выхватив распечатку из рук Джаббы и сунув ее под нос Сьюзан. Между шифровалкой и стоянкой для машин не менее дюжины вооруженных охранников. - Я не такой дурак, как вы думаете, - бросил Хейл.  - Я воспользуюсь вашим лифтом. Сьюзан пойдет со. А вы останетесь.

Он посмотрел на нее умоляюще и покрутил затекшей шеей. - У меня затекли плечи. Мидж не поддалась. - Прими аспирин. - Не помассируешь мне спину? - Он надулся. Мидж покачала головой. Иными словами, это червь со своими пристрастиями. Бринкерхофф открыл рот, собираясь что-то сказать, но Фонтейн движением руки заставил его замолчать. У меня есть кое-что для. Она зажмурилась. - Попробую угадать.

Танкадо прислал нам письмо. ГЛАВА 122 - Шесть минут! - крикнул техник. Сьюзан отдала приказ: - Перепечатайте сверху .

Очевидно, когда Танкадо умер, рядом находились свидетели. Согласно словам офицера, который отвел Дэвида в морг, некий канадский турист сегодня утром в панике позвонил в полицию и сказал, что у одного японца в парке случился сердечный приступ. Прибыв на место, офицер увидел мертвого Танкадо, рядом с которым находился упомянутый канадец, и тут же по рации вызвал скорую.

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Second Law of Thermodynamics Questions and Answers. Test your understanding with practice problems and step-by-step solutions. Browse through all study.

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This set of Thermodynamics Multiple Choice Questions & Answers (MCQs) focuses on “Second Law of Thermodynamics”. 1. Heat is transferred to a heat engine.