Engineering Thermodynamics Zeroth law of thermodynamics Deals with heat engines Deals with conversion of mass and energy Deals with reversibility and irreversibility of process States that if two systems are both in equilibrium with a third system, they are in thermal equilibrium with each other Deals with heat engines Deals with conversion of mass and energy Deals with reversibility and irreversibility of process States that if two systems are both in equilibrium with a third system, they are in thermal equilibrium with each other ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The pressure of a gas in terms of its mean kinetic energy per unit volume 'E' is equal to 2E/3 E/3 3E/4 E/2 2E/3 E/3 3E/4 E/2 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The expansion ratio (r) is the ratio of (where v1 = Volume at the beginning of expansion, and v2 = Volume at the end of expansion) (v1 + v2)/v1 v1/v2 (v1 + v2)/v2 v2/v1 (v1 + v2)/v1 v1/v2 (v1 + v2)/v2 v2/v1 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics In order that a cycle be reversible, following must be satisfied When beat is being rejected, temperature of cold source and working substance should be same Free expansion or friction resisted expansion/compression process should not be encountered All of these When heat is being absorbed, temperature of hot source and working substance should be same When beat is being rejected, temperature of cold source and working substance should be same Free expansion or friction resisted expansion/compression process should not be encountered All of these When heat is being absorbed, temperature of hot source and working substance should be same ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Universal gas constant is defined as equal to product of the molecular weight of the gas and Specific heat at constant volume Specific heat at constant pressure Gas constant Ratio of two specific heats Specific heat at constant volume Specific heat at constant pressure Gas constant Ratio of two specific heats ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The main cause for the irreversibility is Unrestricted expansion Mechanical and fluid friction Heat transfer with a finite temperature difference All of these Unrestricted expansion Mechanical and fluid friction Heat transfer with a finite temperature difference All of these ANSWER DOWNLOAD EXAMIANS APP
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