Engineering Thermodynamics
The behavior of a perfect gas, undergoing any change in the variables which control physical properties, is governed by

Boyle's law
All of the listed here
Charles' law
Gay-Lussac law

ANSWER DOWNLOAD EXAMIANS APP

Engineering Thermodynamics
An isolated 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 does not cross boundaries of the system, though energy may do so
Mass crosses the boundary but not the energy

ANSWER DOWNLOAD EXAMIANS APP

Engineering Thermodynamics
Which of the following is the correct statement of the second law of thermodynamics?

There is a definite amount of mechanical energy, which can be obtained from a given quantity of heat energy
All of these
It is impossible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work
It is impossible to transfer heat from a body at a lower temperature to a higher temperature, without the aid of an external source

ANSWER DOWNLOAD EXAMIANS APP