7rnmartinez
10.11.2020 •
Chemistry
In an atom, what is the number of protons equal to?
.the number of neutrons
.the number of nucleiIn an atom
the number of molecul
the number of electrons
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Ответ:
2.5 L.
Explanation:
We can use the general law of ideal gas: PV = nRT.where, P is the pressure of the gas in atm.
V is the volume of the gas in L.
n is the no. of moles of the gas in mol.
R is the general gas constant,
T is the temperature of the gas in K.
If n and T are constant, and have two different values of V and P:P₁V₁ = P₂V₂
P₁ = 5.0 atm, V₁ = 3.5 L.
P₂ = 7.0 atm, V₂ = ??? L.
∴ V₂ = P₁V₁/P₂ = (5.0 atm)(3.5 L)/(7.0 atm) = 2.5 L.