Engineering Thermodynamics
The main cause for the irreversibility is

Unrestricted expansion
All of these
Heat transfer with a finite temperature difference
Mechanical and fluid friction

ANSWER DOWNLOAD EXAMIANS APP

Engineering Thermodynamics
According to Dalton's law, the total pressure of the mixture of gases is equal to

Greater of the partial pressures of all
Sum of the partial pressures of all divided by average molecular weight
Sum of the partial pressures of all
Average of the partial pressures of all

ANSWER DOWNLOAD EXAMIANS APP