Answer : The correct option is, (D) Entropy
Explanation :
Entropy : It is defined as the measurement of randomness or disorderedness in a system.
The order of entropy will be,
As we are moving from solid state to liquid state to gaseous state, the entropy will be increases due to the increase in the disorderedness.
As we are moving from gaseous state to liquid state to solid state, the entropy will be decreases due to the decrease in the disorderedness.
Enthalpy : It is defined as the amount of heat added or removed from the system.
Work : It is the product of force and distance of an object.
Efficiency : It is defined as the percent ratio of output to input energy.
Hence, the measure of disorder in a system called entropy.