Engineering Thermodynamics The unit of energy is S. I. units is Joule meter (Jm) Watt (W) Joule/meter (J/m) Joule (J) Joule meter (Jm) Watt (W) Joule/meter (J/m) Joule (J) 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) (p1 v1 - p2, v2)/(γ - 1) [m R (T1 - T2)] /(γ - 1) [m R T1/(γ - 1)][1 - (p2, v2 /p1 v1)] All of these (p1 v1 - p2, v2)/(γ - 1) [m R (T1 - T2)] /(γ - 1) [m R T1/(γ - 1)][1 - (p2, v2 /p1 v1)] All of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The absolute zero pressure can be attained at a temperature of None of these -273°C 273 K 0°C None of these -273°C 273 K 0°C ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The compression ratio for petrol engines is 3 to 6 15 to 30 5 to 8 10 to 20 3 to 6 15 to 30 5 to 8 10 to 20 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The kinetic energy per kg molecule of any gas at absolute temperature T is equal to (where Ru = Universal gas constant) 2 Ru × T 3 Ru × T 1.5 Ru × T Ru × T 2 Ru × T 3 Ru × T 1.5 Ru × T Ru × T 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) 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) cp - cv = R ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS