Engineering Thermodynamics Charles' law states that all perfect gases change in volume by __________ of its original volume at 0°C for every 1°C change in temperature, when pressure remains constant. 1/173th 1/93th 1/27th 1/273th 1/173th 1/93th 1/27th 1/273th ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics According to Avogadro's law, for a given pressure and temperature, each molecule of a gas Occupies volume inversely proportional to its molecular weight Occupies same volume Occupies volume inversely proportional to its specific weight Occupies volume proportional to its specific weight Occupies volume inversely proportional to its molecular weight Occupies same volume Occupies volume inversely proportional to its specific weight Occupies volume proportional to its specific weight ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Relation between cp and cv is given by (where cp = Specific heat at constant pressure, cv = Specific heat at constant volume, γ = cp/cv, known as adiabatic index, and R = Gas constant) cp - cv = R cv/ cp =R cv = R/ γ-1 Both (B) and (C) cp - cv = R cv/ cp =R cv = R/ γ-1 Both (B) and (C) ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The efficiency and work ratio of a simple gas turbine cycle are High Very low Low Very high High Very low Low Very high ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Petrol is distilled at 470° to 550°C 65° to 220°C 220° to 345°C 345° to 470°C 470° to 550°C 65° to 220°C 220° to 345°C 345° to 470°C ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Which of the following is the correct statement of the second law of thermodynamics? It is impossible to transfer heat from a body at a lower temperature to a higher temperature, without the aid of an external source There is a definite amount of mechanical energy, which can be obtained from a given quantity of heat energy All of these It is impossible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work It is impossible to transfer heat from a body at a lower temperature to a higher temperature, without the aid of an external source There is a definite amount of mechanical energy, which can be obtained from a given quantity of heat energy All of these It is impossible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work ANSWER DOWNLOAD EXAMIANS APP
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