A 5 m3 tank containing 5kg of an unknown ideal gas at 500 kPa is connected through a valve to another tank containing 10 kg of the same gas at 200 kPa. The two tanks have thermal equilibrium with the ambient environment. After the valve has been opened, the tanks again reach thermal equilibrium with their ambient environment. What is the a) total volume, b) total mass, and c) pressure of the gas in the two tanks

a) , b) , c)

Explanation:

a) The equation of state for ideal gas is:

Given the existence of an isothermal process, the following relation is derived:

The volume of the other tank is:

The total volume is:

b) The total mass is:

c) The pressure of the gas in the two tanks is:

the independent variable, the one that is intentionally manipulated, is whether or not the car hits the barrier.

the dependent variable, the one that you measure the response in, is the distance that the washers travel.

i am pretty sure it is c because when people are closer together, they cannot move as freely. picture being in a mostly full elevator, for instance. the people are right next to you, and you can barely move.