Zero
Positive
Maximum
Minimum

Joule cycle
Otto cycle
Carnot cycle
Rankine cycle

## Engineering Thermodynamics When the gas is cooled at constant pressure,

Its volume increases but temperature decreases
Its temperature increases but volume decreases
Both temperature and volume decreases
Both temperature and volume increases

-140 kJ
-40 kJ
+60 kJ
-80 kJ

## Engineering Thermodynamics When a gas is heated at constant pressure

Both temperature and volume will increase
Neither temperature not volume will increase
Its temperature will increase
Its volume will increase

## 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 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.
It is possible to transfer heat from a body at a lower temperature to a body at a higher temperature.
None of these