Engineering Thermodynamics The general gas equation is (where p = Pressure, v = Volume, m = mass, T = Absolute temperature, and R = Gas constant) pv = (RT)m pv = mRT pvm = C pv = RTm pv = (RT)m pv = mRT pvm = C pv = RTm ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics A perfect gas at 27°C is heated at constant pressure till its volume is double. The final temperature is 108°C 327°C 54°C 654°C 108°C 327°C 54°C 654°C 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 Both (B) and (C) cv/ cp =R cv = R/ γ-1 cp - cv = R Both (B) and (C) cv/ cp =R cv = R/ γ-1 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The ideal efficiency of a Brayton cycle without regeneration, with increase in pressure ratio will Increase/decrease depending on application Remain unchanged Increase Decrease Increase/decrease depending on application Remain unchanged Increase Decrease ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The efficiency of the Carnot cycle may be increased by Increasing the lowest temperature Keeping the lowest temperature constant Increasing the highest temperature Decreasing the highest temperature Increasing the lowest temperature Keeping the lowest temperature constant Increasing the highest temperature Decreasing the highest temperature ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The ideal efficiency of a Brayton cycle with regeneration, with increase in pressure ratio will Remain unchanged Increase/decrease depending on application Increase Decrease Remain unchanged Increase/decrease depending on application Increase Decrease ANSWER DOWNLOAD EXAMIANS APP
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