An insulated tank contains air at 0.5 atm pressure and 298k. the outside pressure is at 1 atm pressure and 298k. a valve is opened and air is allowed to ow into the tank. the air inside and outside the tank behaves ideally. what is the temperature of the gas in the tank after it is lled?

The temperature of the gas after it is filled is 596 K

Explanation:

According to Gay-Lussac law, the pressure of a gas mass is directly proportional to temperature to a constant volume. That means than if pressure rise, the temperature too. We can assume then the volume is constant because the tank is isolated. The tank will be full when pressure will be in equilibrium, that means when pressure will be 1 atm because it is environment pressure. Using the following equation:

P1 /T1 = P2 /T2 and replacing, T2 = P2  *T1 / P1 = 1 atm * 298K / 0.5 atm = 596 K.

I hope my answer helps you

no

explanation:

go away, people want answers, not to hook up

number of molecules / avogadro's number * molecule molecular = mass

explanation:

we define a gram-molecular weight as the mass of one mole of any element or compound. a mole contains avogadro's number of units (molecules) –  

6.022

x

10

23

. so, dividing the number of molecules by avogadro's number gives us the number of moles. multiplying that by the molecular weight gives us the mass. from the periodic table we find the gram-molecular weight of u to be238 and of f to be19. so,  

u

f

6

will have a gram-molecular weight of 352g.