Engineering Thermodynamics An open system is one in which Neither mass nor energy crosses the boundaries of the system Both energy and mass cross the boundaries of the system Mass crosses the boundary but not the energy Mass does not cross boundaries of the system, though energy may do so Neither mass nor energy crosses the boundaries of the system Both energy and mass cross the boundaries of the system Mass crosses the boundary but not the energy Mass does not cross boundaries of the system, though energy may do so ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics On weight basis, air contains following parts of oxygen 73 23 21 25 73 23 21 25 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Those substances which have so far not been resolved by any means into other substances of simpler form are called Atoms Molecules Elements Compounds Atoms Molecules Elements Compounds ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Isochoric process is one in which Very little mechanical work is done by the system Free expansion takes place No mechanical work is done by the system All parameters remain constant Very little mechanical work is done by the system Free expansion takes place No mechanical work is done by the system All parameters remain constant ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics An adiabatic wall is one which Permits thermal interaction Prevents thermal interaction Encourages thermal interaction Discourages thermal interaction Permits thermal interaction Prevents thermal interaction Encourages thermal interaction Discourages thermal interaction ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The efficiency of the Carnot cycle is (where T1 and T2 = Highest and lowest temperature during the cycle) (T1/T2) - 1 1 - (T2/T1) 1 - (T1/T2) 1 + (T2/T1) (T1/T2) - 1 1 - (T2/T1) 1 - (T1/T2) 1 + (T2/T1) ANSWER DOWNLOAD EXAMIANS APP
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