Engineering Thermodynamics A definite area or a space where some thermodynamic process takes place is known as

Thermodynamic law
Thermodynamic system
Thermodynamic process
Thermodynamic cycle

Engineering Thermodynamics For a perfect gas, according to Boyle’s law (where P = Absolute pressure, V = Volume and T = Absolute temperature)

P v = constant, if T is kept constant
T/P = constant, if v is kept constant
P/T = constant, if v is kept constant
V/T = constant, if p is kept constant

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

Engineering Thermodynamics Carnot cycle consists of

Two constant pressure and two isentropic processes
Two constant volume and two isentropic processes
One constant volume, one constant pressure and two isentropic processes
Two isothermal and two isentropic processes

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

joule/m
watt
joule/s
Joule