Question FBQ1 : A real gas behaves as an ideal gas when pressure approaches _____ Answer: zero Question FBQ2 : What is a device that maintains a body at a temperature lower than the temperature of the surroundings Answer: Refrigerator Question FBQ3 : Nitrogen boils at -196 oC. What is this temperature on the absolute scale? Answer: 77K Question FBQ4 : Work done in a free expansion process is equal to______. Answer: Zero Question FBQ5 : The degree of hotness or coldness of a body is called______. Answer: Temperature Question FBQ6 : When there is a flow of heat into a system, heat is said to be ______. Answer: Positive Question FBQ7 : A Thermometer is named after the ______ property used for its construction Answer: Thermometric Question FBQ8 : The instrument for measuring the temperature of a body is known as______. Answer: Thermometer Question FBQ9 : Electrical conductivity of a metal depends on the movement of ______ through its crystal lattice. Answer: Electrons Question FBQ10 : The relationship between the temperature and electrical resistance is usually ______. Answer: Non-linear Question FBQ11 : The transfer of heat through solids is known as______. Answer: Conduction Question FBQ12 : The transfer of heat through fluids is known as______. Answer: Convection Question FBQ13 : When the thermal resistance of a slab is a high value, it indicates a ______insulation Answer: good thermal Question FBQ14 : The process in which energy is transferred by means of electromagnetic waves is known as______. Answer: Radiation Question FBQ15 : If a fluid expands suddenly into vacuum through an orifice of large dimension, then such a process is called_____ expansion. Answer: free Question FBQ16 : The equation is known as the______law. Answer: Stefan-Boltzmann Question FBQ17 : If x = zy find the partial derivative of x with respect to y. Answer: z Question FBQ18 : The rate of energy loss per second that is proportional to the temperature difference between the object and its surroundings is known as______. Answer: Newton's law of cooling Question FBQ19 : The heating and expanding of a gas is called______. Answer: Thermodynamic cycle Question FBQ20 : When work is being performed by a system it is said to be a______work. Answer: Negative Question FBQ21 : The transfer of heat between two bodies in direct contact is called ______. Answer: Conduction Question FBQ22 : The equation dQ=dE+dW holds good for______ process Answer: reversible Question FBQ23 : The entropy always remains constant for a ______ process that occurs in a closed system. Answer: Reversible Question FBQ24 : Whose statement is this? ‘’No process is possible whose sole results is to the complete conversion of heat into work’’. Answer: Kelvin's Question FBQ25 : The most efficient heat engine is known as ______ engine Answer: Carnot Question FBQ26 : Total heat of a substance is also known as ______. Answer: Enthalpy Question FBQ27 : The ______ Cycle consists of two adiabatic processes and two constant volume processes. Answer: Otto Question FBQ28 : The purpose of the displacer mechanism is to move the working gas between the hot and cold ends of the machine through the ______. Answer: Regenerator Question FBQ29 : The ______ is a device that uses work to transfer energy from a low temperature reservoir to a high temperature reservoir. Answer: Refrigerator Question FBQ30 : When a carnot engine is reversed it is called a ______. Answer: carnot refrigerator Question FBQ31 : The process in which the entropy of the system increases for irreversible process and remains unchanged for reversible process is _____ law of thermodynamics. Answer: Second Question FBQ32 : All gases and vapours approach ideal gas behaviour at ____ pressure and low density Answer: low Question FBQ33 : Water contained in a beaker can be made to boil by passing steam through it at a pressure greater than ______. Answer: atmospheric pressure Question FBQ34 : If a system undergoes a reversible isothermal process without transfer of heat, the temperature at which this process takes place is called _____ zero. Answer: Absolute Question FBQ35 : The efficiency of all reversible ____engines operating between the same heat reservoirs is Independent of the amount or nature of working substance Answer: heat Question MCQ1 : A series of operations, which take place in a certain order and restore the initial condition, is known as _____. Answer: Thermodynamic cycle Question MCQ2 : In an irreversible process, there is a _____ Answer: Loss of heat Question MCQ3 : Which of the following is correct? Answer: Absolute pressure = gauge pressure + atmospheric pressure Question MCQ4 : One watt is equal to ____. Answer: 1 Nm/s Question MCQ5 : An ideal gas as compared to a real gas at very high pressure occupies_____. Answer: More volume Question MCQ6 : When there is a flow of heat into a system heat is said to be_____. Answer: Positive Question MCQ7 : A Thermometer is named after the _____ property used for its construction Answer: Thermometric Question MCQ8 : The instrument for measuring the temperature of a body is known as_____. Answer: Thermometer Question MCQ9 : Electrical conductivity of a metal depends on the movement of _____ through its crystal lattice Answer: Electrons Question MCQ10 : The relationship between the temperature and electrical resistance is usually _____. Answer: Non-linear Question MCQ11 : The transfer of heat through solids is known as_____. Answer: Conduction Question MCQ12 : The transfer of heat through fluids is known as_____. Answer: Convection Question MCQ13 : When the thermal resistance of a slab is a high value, it indicates a_____insulation. Answer: Good thermal Question MCQ14 : All are examples of Intensive properties except : Answer: Volume Question MCQ15 : A system comprising a single phase is called a _____ Answer: Homogeneous system Question MCQ16 : The equation Q = ԐϬT4At is known as the_____law. Answer: Stefan-Boltzmann’s Question MCQ17 : The ratio of radiant energy emitted by an object to the one it would have emitted if it were to be a perfect blackbody is known as_____. Answer: Emissivity Question MCQ18 : The rate of energy loss per second that is proportional to the temperature difference between the object and its surroundings is known as_____. Answer: Newton's law of cooling Question MCQ19 : When work is being performed on a system it is said to be a_____work. Answer: Positive Question MCQ20 : The efficiency of carnot cycle may be increased by_____. Answer: Decreasing the highest temperature Question MCQ21 : The work done in a system of wires is equal to_____. Answer: Tension X Length Question MCQ22 : Water at standard atmospheric conditions_____. Answer: Is far below its critical state Question MCQ23 : The entropy always remains constant for a _____ process that occurs in a closed system. Answer: Reversible Question MCQ24 : No process is possible whose sole results is to the complete conversion of heat into work' is known as_____ Statement. Answer: Kelvin's Question MCQ25 : The most efficient heat engine is known as_____ engine. Answer: Carnot Question MCQ26 : A _____ engine is a device used to convert thermal energy into mechanical work. Answer: Heat Question MCQ27 : The _____ Cycle consists of two adiabatic processes and two constant volume processes. Answer: Otto Question MCQ28 : The purpose of the displacer mechanism is to move the working gas between the hot and cold ends of the machine through the_____. Answer: Regenerator Question MCQ29 : The _____ is a device that uses work to transfer energy from a low temperature reservoir to a high temperature reservoir. Answer: Refrigerator Question MCQ30 : Change in internal energy in a closed system is equal to heat transferred if the reversible process takes place at constant Answer: Volume Question MCQ31 : The temperature of an object that emits electromagnetic radiation must be higher than 0oC converted from one form to other inferred from ____. Answer: First law of thermodynamics Question MCQ32 : Which of the following parameters is constant for a mole for most of the gases at a given temperature and pressure? Answer: Volume Question MCQ33 : The term N.T.P. stands for ____. Answer: Normal temperature and pressure Question MCQ34 : The Celcius equivalent of 200 K is ____. Answer: Negative 73oC Question MCQ35 : What is the standard fixed point of thermometry? Answer: The triple point of water