Question

, a system absorbs 6 kilo joule of heat and does th a system absorbs 6 kilo joule of heat and does the 1.5 kilo joule of work on its surrounding the change in internal energy is

Answer 1

Answer:

The unit of heat absorbed will be Kj which is kilo joules.

Now, we can get the internal energy by using the formulae of the first laws of thermodynamics.

Since, the heat absorbed is 6Kj hence, ∆q = 6kgj.  

Work done, W = -1.5kj ( negetive since the work is done on the system).  

∆q + W = ∆U .

6 - 1.5 = ∆U .

On solving we get.

∆U = 4.5kg.