Question

define ∆H = ∆U + P∆V​

Answer 1

Answer:

This is an equation of thermodynamics.

Now ∆H refers to enthalpy change, ∆U refers to internal energy change, P∆V refers to change in work done.

So this equation can be defined as follows:

Enthalpy change is the sum of the change in internal energy change and the work done.

Since in an reaction, the work done can be expressed as follows:

P∆V = ∆nRT.

So the w

equation can be changed to :

∆H = ∆U+ ∆nRT.

Hope you will be able to understand.

Answer 2

AnSwEr:-

$\longrightarrow$Change in heat is equal to the sum of change in internal energy and work done by the system.

$\longrightarrow$This is first law of thermodynamics which states that heat given to the system is converted into workdone and to increase the internal energy of the system.

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