I would agree with the second one, not the first. You can't always see the chemical reaction, and it isn't always sudden. But the second claim is true.
Density is equal to mass divided by volume so the densest object will be the object that has the largest mass in the smallest area.
In this case object A is the densest with a density of 10g/cm^3.
I hope this helps. Let me know if anything is unclear.
Answer:
What is the formula for elevation in boiling point?
Explanation:
The elevation in boiling point (ΔTb) is proportional to the concentration of the solute in the solution. It can be calculated via the following equation. Where, i is the Van't Hoff factor.
...
Boiling Point Elevation Formula.
Solvent Kb value (in oC.kg.mol-1)
Chloroform 3.63
Benzene 2.53
Answer:
Explanation:
Mechanical and thermal energy are both different forms of energy. They can be converted from one to another. Some systems relies solely on this form of energy conversion between these types of interactions.
Mechanical energy is a form of energy that is due to the motion of a body.
Thermal energy is due to the temperature changes between bodies.
Both forms of energy are not related but they can be converted from one from to anther.
Answer:
455 Torr
Explanation:
To get the correct answer, we employ the use of the General gas equation.
In its general form, the General gas equation can be written as:
P1V1/T1 = P2V2/T2
Defining the parameters;
P1 = 764 torr
V1 = 8.6L
T1 = 45 degrees Celsius = 273.15+ 45 = 318.15K
P2 = ?
V2 = 13.3L
T2 = 20 degrees Celsius = 273.15 + 20 = 293.15K
Rearranging the equation yields: P2 = P1V1T2/T1V2
Substituting the values:
P2 = (764 * 8.6 * 293.15)/(318.15 * 13.3)
P2= 455.2 Torr
