Engineering Thermodynamics The heat absorbed or rejected by the working substance is given by (where ds = Increase or decrease of entropy, T = Absolute temperature, and dQ = Heat absorbed or rejected) dQ = ds/T δQ = T.ds δQ = T/ds None of the listed here dQ = ds/T δQ = T.ds δQ = T/ds None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics One reversible heat engine operates between 1600 K and T2 K and another reversible heat engine operates between T2 K and 400 K. If both the engines have the same heat input and output, then temperature T2 is equal to 1000 K 1400 K 800 K 1200 K 1000 K 1400 K 800 K 1200 K ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Boyle's law i.e. pV = constant is applicable to gases under Only small range of pressures All ranges of pressures High range of pressures Steady change of pressures Only small range of pressures All ranges of pressures High range of pressures Steady change of pressures ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics One kg of carbon monoxide requires 4/7 kg of oxygen and produces 11/7 kg of carbon dioxide gas 8/3 kg of carbon monoxide gas 11/3 kg of carbon dioxide gas 7/3 kg of carbon monoxide gas 11/7 kg of carbon dioxide gas 8/3 kg of carbon monoxide gas 11/3 kg of carbon dioxide gas 7/3 kg of carbon monoxide gas ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The oxygen atom is ________ times heavier than the hydrogen atom. 32 2 16 8 32 2 16 8 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/(γ - 1)][1 - (p2, v2 /p1 v1)] (p1 v1 - p2, v2)/(γ - 1) All of these [m R (T1 - T2)] /(γ - 1) [m R T1/(γ - 1)][1 - (p2, v2 /p1 v1)] (p1 v1 - p2, v2)/(γ - 1) All of these [m R (T1 - T2)] /(γ - 1) ANSWER DOWNLOAD EXAMIANS APP
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