Answer:
Molecules in an ice cube have lower kinetic energy than molecules in a radiator.
Molecules in an ice cube move more slowly than molecules in a radiator. They collide with less force than molecules in a radiator.
When in direct contact, the fast-moving molecules in the radiator collide with the slow-moving molecules in the ice cube.
Kinetic energy is transferred from the molecules in the radiator to the molecules in the ice cube, causing a slowdown of the radiator molecules and an acceleration of the ice molecules
Explanation:
Explanation:
Attach a picture.. Write your Question please please please please please please please please please please please please please please please please please please please please please please please
Answer:
Osmotic pressure is a measure of a solution's tendency to attract or take in water from another solution when the two solutions are separated by a semipermeable membrane
The order of increasing osmotic pressure is
- 0.7% KCl
- 1.5% KCl
- 1.8% KCl
- 5.0% KCl
- 8.6% KCl
Explanation:
Osmotic pressure is the strength of movement of the solvent of a solution through a semipermeable membrane separating solutions of different concentration thereby causing the solvent (such as water) to move from a region of high solute concentration to a region of lower solute concentration.
The amount of osmotic pressure through a semipermeable membrane separating solutions of different concentration is given by
π = i×M×R×T
π = osmotic pressure
i = van't Hoff's factor
(M) = molar concentration
(T) = temperature in kelvin
R = ideal gas constant (0.08206 L atm mol⁻¹K⁻¹)
As seen above , the osmotic pressure is directly proportional to the concentration of the solution thus in the order of increasing osmotic pressure we have
- 0.7% KCl
- 1.5% KCl
- 1.8% KCl
- 5.0% KCl
- 8.6% KCl