the difference between the boiling point and the freezing point of pure water at standard pressure is

(1)32 K
(2)273 K
(3)100 K
(4)373 K

See your post above.

273K

To determine the difference between the boiling point and freezing point of pure water at standard pressure, we need to understand the values of these two points.

The boiling point of a substance is the temperature at which it changes from a liquid state to a gas state. For water, the boiling point at standard pressure (1 atmosphere or 101.3 kPa) is 100 degrees Celsius or 212 degrees Fahrenheit.

On the other hand, the freezing point of a substance is the temperature at which it changes from a liquid state to a solid state. For water, the freezing point at standard pressure is 0 degrees Celsius or 32 degrees Fahrenheit.

To calculate the difference between the boiling point and freezing point, we subtract the freezing point from the boiling point:

Boiling point - Freezing point = 100°C - 0°C = 100°C

Therefore, the difference between the boiling point and freezing point of pure water at standard pressure is 100 degrees Celsius.

So the correct answer is (3) 100 K.