Consider the statement (A) and (B) and identify the carrect answers. A . First law of thermodynamics specifics the consitions under which a body can u
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 true
B. Both A and B are false
C. A is true but B is false
D. A is false B is true
1 Answers
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.