Question

"No process is possible whose sole result is the transfer of heat from a colder object to a hotter object." This is a statement of:
1. Clausius statement
2. Kelvin-Planck statement
3. First law of thermodynamics
4. None of these

Answer 1

Correct Answer - Option 1 : Clausius statement

CONCEPT:

Clausius statement:

• No process is possible whose sole result is the transfer of heat from a colder object to a hotter object.

Kelvin-Planck statement:

• No process is possible whose sole result is the absorption of heat from a reservoir and the complete conversion of the heat into work.

The first law of thermodynamics

• This law states that the total​ heat given or taken out of the system will always be equal to the work done and change in the internal energy of the system.

​
⇒ Q = W + ΔU

EXPLANATION:

• From the above, it is clear that Clausius's statement has stated that no process is possible whose sole result is the transfer of heat from a colder object to a hotter object. Hence, option 1 is correct.