Back to THERMODYNAMICS
JEE PHYSICS MCQ: THERMODYNAMICS
1
Medium
1 of 1
Analyzing
+4 | -1
(A): When a glass of hot milk is placed in a room and allowed to cool, its entropy decreases.
(R): Allowing hot object to cool does not violate the second law of thermodynamics.
(R): Allowing hot object to cool does not violate the second law of thermodynamics.
View answer and explanation
Correct option: B
Both (A) and (R) are true and (R) is not the correct explanation of (A)
Option B (Both (A) and (R) are true and (R) is not the correct explanation of (A)) is correct because while both the assertion and the reason are true statements, the reason does not explain why the entropy of the milk decreases.
More Questions from THERMODYNAMICS
Practice All Chapter MCQs →
The work done in which of the following process is zero?
Water is used to cool the radiators of engines in cars because
A gas expand at constant pressure the work done is
A thermodynamic process in which temperature of the system remains constant though other variable and may change, is called
What is the slope for an isothermal process?
For adiabatic processes