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 = R/ γ-1 cv/ cp =R Both (B) and (C) cp - cv = R cv = R/ γ-1 cv/ cp =R Both (B) and (C) cp - cv = R ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics When wood is heated with a limited supply of air to a temperature not less than 280°C, the resulting fuel is Wood charcoal Bituminous coal Coke Briquetted coal Wood charcoal Bituminous coal Coke Briquetted coal ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Energy can neither be created nor destroyed but can be converted from one form to other is inferred from Zeroth low of thermodynamic First law of thermodynamics Basic law of thermodynamics Second law to thermodynamics Zeroth low of thermodynamic First law of thermodynamics Basic law of thermodynamics Second law to thermodynamics ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The heat supplied to the gas at constant volume is (where m = Mass of gas, cv = Specific heat at constant volume, cp = Specific heat at constant pressure, T2 - T1 = Rise in temperature, and R = Gas constant) mcp (T2 + T1) mcv (T2 - T1) mR (T2 - T1) mcp (T2 - T1) mcp (T2 + T1) mcv (T2 - T1) mR (T2 - T1) mcp (T2 - T1) ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Which of the following is the correct statement? Irreversible engines have maximum efficiency. All engines are designed as reversible in order to obtain maximum efficiency. All the reversible and irreversible engines have the same efficiency. All the reversible engines have the same efficiency. Irreversible engines have maximum efficiency. All engines are designed as reversible in order to obtain maximum efficiency. All the reversible and irreversible engines have the same efficiency. All the reversible engines have the same efficiency. ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The more effective way of increasing efficiency of Carnot engine is to Decrease lower temperature Increase higher temperature Decrease higher temperature Increase lower temperature Decrease lower temperature Increase higher temperature Decrease higher temperature Increase lower temperature ANSWER DOWNLOAD EXAMIANS APP
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