There poisonous gas that needs to be removed from a room. The room is at 1 atm and 270 C. A machine can remove the gas at 32 mL/minute. How long will it take to remove all the gas?

1391 minutes

Explanation:

To solve the problem, we need to find first the volume of gas present in the room.

We can do it by using the equation of state for an ideal gas:

where

p = 1 atm is the pressure

V is the volume

n = 1 mol is the number of moles (not given in the problem, so we assume its value)

is the gas constant

is the temperature

Solving for V,

So, there are 44.5 L of gas in the room.

The gas can be removed at a rate of

Therefore, the time it takes is:

explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

            and  

since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be and .  

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.  

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