TS EAMCET · Physics · Thermodynamics
Assertion : Heat and work are modes of energy transfer to a system resulting in change in its internal energy. Reason : Heat and work in thermodynamics are state variables. The correct option among the following is
- A (A) is true, (R) is true and (R) is the correct explanation for (A)
- B (A) is true, (R) is true but (R) is not the correct explanation for (A)
- C (A) is true but (R) is false
- D (A) is false but (R) is true
Answer & Solution
Correct Answer
(C) (A) is true but (R) is false
Step-by-step Solution
Detailed explanation
Assertion is correct as \(\Delta \mathrm{U}=\Delta \mathrm{Q}-\Delta \mathrm{W}\) Now, heat is a path function So, it is not a state variable. Therefore, reason is correct.
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