Question

state first law of thermodynamic and drive it mathematical equation

Answer 1

first law of thermodynamics :
The energy is neither be created nor be destroyed...
mathematical equation :Del U=Q-W

Answer 2

First law of thermodynamics:

The first law of thermodynamics state that,

Q = ∆U + We

where Q is the charge,

• U is internal energy,
• We is work done.

Which is ∆U= q + w.

According to the first law of thermodynamics it states that heat can be converted into Work done.

Heat => Work.

1. We can't find the exact value of U.

2. We can just measure the change in Internal energy (U).

3. He change in U doesn't depend on any path.

U1 = K.E1

Adding heat "Q" to the system, K.E increases and U changes

U2 = K.E2

Q = ∆U + W

But first law of thermodynamics doesn't explain us the process in which heat can be converted into work.