Engineering Thermodynamics Which of the following is the correct statement of the second law of thermodynamics? It is impossible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work All of these 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 It is impossible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work All of these 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 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The entropy of water at 0°C is assumed to be 1 2 -1 1 2 -1 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Carnot cycle efficiency is maximum when Final temperature is 0°K Final temperature is 0°C Initial temperature is 0°K Difference between initial and final temperature is 0°K Final temperature is 0°K Final temperature is 0°C Initial temperature is 0°K Difference between initial and final temperature is 0°K ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Work-done during adiabatic expansion is given by (where p1 v1, T1 = Pressure, volume and temperature for the initial condition of gas, p2, v2, T2 = Corresponding values for the final condition of gas, R = Gas constant, and γ = Ratio of specific heats) [m R (T1 - T2)] /(γ - 1) (p1 v1 - p2, v2)/(γ - 1) All of these [m R T1/(γ - 1)][1 - (p2, v2 /p1 v1)] [m R (T1 - T2)] /(γ - 1) (p1 v1 - p2, v2)/(γ - 1) All of these [m R T1/(γ - 1)][1 - (p2, v2 /p1 v1)] ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The amount of heat required to raise the temperature of 1 kg of water through one Kelvin is called Specific heat at constant pressure Specific heat at constant volume None of these kilo-Joule Specific heat at constant pressure Specific heat at constant volume None of these kilo-Joule ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The value of 1 mm of Hg is equal to 1.333 N/m2 13.33 N/m2 133.3 N/m2 1333 N/m2 1.333 N/m2 13.33 N/m2 133.3 N/m2 1333 N/m2 ANSWER DOWNLOAD EXAMIANS APP
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