Answer / n.mohnesh

FIRST LAW OF THERMODYNAMICS

Answer / justahelper

The first law tells us that energy is neither created nor
destroyed i.e cyclic integral of dQ should be equal to
cyclic integral of dW about a closed cycle

Then, the 2nd law clarifies this relation by specifying that
heat HAS to be rejected in the conversion of heat to work
and all heat supplied cannot be converted to work, some heat
will be stored as internal energy
Hence, dQ-dW=1 means dW work is done out of dQ and the
remaining 1 is the increase in internal energy. Hence, 2nd
law is obeyed here.

Answer / sornakumar

dQ/dW=1 THIS is the first law of thermodyanamics

Answer / sneha more

if the eqn is for process then it obeys first law.
dQ-dW=1 dU=1

if eqn is for cycle then it obeys second law

since,
dQ & dW should not be equal

Answer / ronnie

answer #5 is correct.
here dQ = 1-dW so
dQ is not equal to dW
hence second law of thermodynamics is obeyed....

Answer / anil kumar satri

first law of thermodynamics
for open system dq = dw

so dq-dw=1
dq= dw

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