Engineering Thermodynamics
The __________ states that change of internal energy of a perfect gas is directly proportional to the change of temperature.

Joule's law
Charle's law
Boyle's law
Gay-Lussac law

ANSWER DOWNLOAD EXAMIANS APP

Engineering Thermodynamics
According to First law of thermodynamics,

Internal energy, enthalpy and entropy during a process remain constant
Work-done by a system is equal to the heat transferred by the system
Total energy of a system remains constant
Total internal energy of a system during a process remains constant

ANSWER DOWNLOAD EXAMIANS APP

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

It is possible to transfer heat from a body at a lower temperature to a body at a higher temperature by using refrigeration cycle.
It is possible to transfer heat from a body at a lower temperature to a body at a higher temperature.
It is impossible to transfer heat from a body at a lower temperature to a body at a higher temperature, without the aid of an external source.
None of these

ANSWER DOWNLOAD EXAMIANS APP