Density is a physical property which describes
the mass of a substance per unit of volume of the substance. It is expressed as
Density = m / V and it has units like g/cm^3. We use the density given to solve
the problem.
3.46x10³ g / 1.11 g/cm³ = 3117.12 cm³ (1 L / 1000 cm³) =3.12 L
Answer:
Explanation:
= Initial concentration = 1.46 g/L
= Final concentration = 2.7 g/L
= Initial pressure = 8 atm
= Final pressure
From Henry's law we have the relation
The pressure of a sample of the same gas at the required concentration is .
n = number of moles of sample of octane = 0.07 mol
Q = energy absorbed by a sample of octane = 3.5 x 10³ J
c = molar heat capacity of octane = 254.0 J/K* mol
ΔT = increase in temperature of octane = ?
Heat absorbed is given as
Q = n c ΔT
inserting the values
3.5 x 10³ J = (0.07 mol) (254.0 J/K* mol) ΔT
ΔT = (3.5 x 10³ )/((0.07) (254.0))
ΔT = 196.85 K
hence increase in temperature comes out to be 196.85 K
