Which of the following is the correct equation?

Question

Which of the following is the correct equation? (A) Δ U = Δ W + Δ Q (B)  Δ U = Δ Q - W (C) Δ W = Δ U + Δ Q (D) None of these

Tardigrade Admin · Accepted Answer

Δ U =Δ Q + W This is the mathematical relation of the first law of thermodynamics. Here, Δ U = change in internal energy; Δ Q = heat absorbed by the system and W = work done by the system.

Q. Which of the following is the correct equation?

$Δ U = Δ W + Δ Q$

$Δ U = Δ Q - W$

$Δ W = Δ U + Δ Q$

None of these

$Δ U = Δ Q + W$
This is the mathematical relation of the first law of thermodynamics.
Here,
$Δ U =$ change in internal energy;
$Δ Q =$ heat absorbed by the system and
$W =$ work done by the system.

Q. Which of the following is the correct equation?

ΔU=ΔW+ΔQ

ΔU=ΔQ−W

ΔW=ΔU+ΔQ

None of these

ΔU=ΔQ+W This is the mathematical relation of the first law of thermodynamics. Here, ΔU= change in internal energy; ΔQ= heat absorbed by the system and W= work done by the system.

$Δ U = Δ W + Δ Q$

$Δ U = Δ Q - W$

$Δ W = Δ U + Δ Q$

$Δ U = Δ Q + W$
This is the mathematical relation of the first law of thermodynamics.
Here,
$Δ U =$ change in internal energy;
$Δ Q =$ heat absorbed by the system and
$W =$ work done by the system.