A partition divides an insulated tank into two parts. One part of the tank contains 2.5 kg of compressed liquid water at 60°C and 500 kPa while the other part is evacuated. The partition is then removed, and the water expands to fill the entire tank. Determine the final temperature of the water and the volume of the tank for a final pressure of 10 kPa.

Explanation:

the energy balance is :

Δ

0=ΔU=

the properties of water are from table

verified if we get a quantity between 0 and 1

we have,

therefore,

we replace the values in this equation:

so,

we replace the values in this equation:

we have,

we replace the values in this equation:

think its the third option

when jerome paddle in flowing river towards east the net speed of jerome will increase

so the net speed of jerome will be given as

now the speed of paul will be same as it is given as he is running on the ground

so

so here we can say since the speed of jerome is more so he will win the race

now as we know the distance so the time difference is given as

so jerome will reach first and the time difference will be 203.55 s or 3.4 min