Answer:
all you do is add -1612 by -89.9 and that should give you the answer you are looking for
Explanation:
Answer:
Organic evolution is the theory that more recent types of plants and animals have their origins in other pre-existing forms and that the distinguishable differences between ancestors and descendents are due to modifications in successive generations.
Explanation:
Answer:
a) Higher than −34 °C because dispersion forces are stronger in iodine due to a greater number of electrons.
Explanation:
Both chlorine and Iodine are halogens. They belong to the 7th group on the periodic table.
To examine the trend of boiling point in this group we must consider the nature of the intermolecular bonds that would be formed by the molecules of these elements. We know that London dispersion forces, a type of van der Waals attraction would be more prevalent. This is so because the molecules here would be non-polar and the uneven distribution of the constantly moving electrons would initiate the intermolecular bonding.
The uneven charge distribution leads to the formation of a temporary dipole.
This makes boiling point increase down the group because more electrons becomes involved and the bond becomes stronger.
Answer:
12.7.
Explanation:
∵ pOH = - log[OH⁻].
[OH⁻] = 0.051 M.
∴ pOH = - log[OH⁻] = - log(0.051 M) = 1.29.
∵ pH + pOH = 14.
∴ pH = 14 - pOH = 14 - 1.292 = 12.7.
Answer:
3.26×10⁵m³
Explanation:
Given data:
Initial volume = 3.5×10⁵ m³
Initial temperature = 27 °C (27+273= 300 K)
Initial pressure = 101 Kpa
Final volume = ?
Final temperature = -10°C (-10+273 = 263 K)
Final pressure = 95 Kpa
Solution:
Formula:
P₁V₁/T₁ = P₂V₂/T₂
P₁ = Initial pressure
V₁ = Initial volume
T₁ = Initial temperature
P₂ = Final pressure
V₂ = Final volume
T₂ = Final temperature
Solution:
V₂ = P₁V₁ T₂/ T₁ P₂
V₂ = 101 Kpa × 3.5×10⁵ m³× 263 K / 300 K × 95 Kpa
V₂ = 92970.5 ×10⁵kpa. m³. K / 28500 K.Kpa
V₂ = 3.26×10⁵m³