InterviewSolution
Saved Bookmarks
InterviewSolution
| 1. |
Consider the statement (A) and (B) and identify the carrect answers. A . First law of thermodynamics specifics the consitions under which a body can use its heat energy to produce the work. B. Second law of thermodynamics states that heat always flows from haot body to cold body the itself .A. Both A and B are trueB. Both A and B are falseC. A is true but B is falseD. A is false B is true |
|
Answer» Correct Answer - A According to first law of thermodynamics. Amount of heat energy Q taken or given to a thermodynamic system is equal to the sum of work done by or the system W and change in its internal energy `DeltaU` . `Q=W+DeltaU` Second law of thermodynamics states that heat cannot be made to flow cold body to a hot without any external aid of machine but heat can flow from a hot body to a cold body by itself. |
|