Water is being heated in a closed pan on top of a range while being stirred by a paddle wheel. during the process, 30 kj of heat is transferred to the water, and 5 kj of heat is lost to the surrounding air. the paddle-wheel work amounts to 5000 n m. determine the final energy of the system if its initial energy is 10 kj.

Final energy will be 40 KJ            

Explanation:

We have given that 30 KJ of the heat is transferred to the water

So

And 5 KJ of heat is lost to the surrounding air  

So

So total heat

The paddle-wheel work amounts to 5000 N -m

So work done W = -5 KJ ( as work is done by the paddle wheel )

We know that

We have given initial kinetic energy = 10 KJ

So

So final  energy = 30+10 =40 KJ

the second one and the forth one are in the purple because they are opinions and the rest are in the yellow

explanation:

ice to water 1 water to vapour 2 latent heat