Answer to the question provided is b frequency
A solid will start to melt when it reaches its melting point. For example the melting point of Helium is -272° Celsius and the melting point of Carbon is 3500° Celsius . Helium has the lowest melting point and carbon has the highest melting point in the periodic table.
Answer:
Doctors began to use sterilized medical
instruments; European and American
hospitals developed a standard of
cleanliness.
Explanation:
Answer:
3.900 km/min
7.677 × 10⁵ ft/h
Explanation:
Step 1: Given data
Speed of the object (s): 6500. cm/s
Step 2: Convert "s" to km/min
We will use the following conversion factors.
6500. cm/s × (1 km/10⁵ cm) × (60 s/1 min) = 3.900 km/min
Step 3: Convert "s" to ft/h
We will use the following conversion factors.
3.900 km/min × (3280.84 ft/1 km) × (60 min/1 h) = 7.677 × 10⁵ ft/h
Honestly, I could think of at least 3 chemistry principles relating to this context. That would be the latent energy, intermolecular forces and melting point depression. They are actually related to each other. Pure solid melt at a very low range of melting point. The latent energy is the energy gained at a constant temperature to convert the solid into liquid form. Hence, an impure solid would have a wider range because of the varying type of intermolecular forces. This would lead to melting point depression where impure solid melt at lower temperatures than pure substances. However, they would still have a wide range. So, it is safe to say that pure solid have meting points, while impure solids have melting ranges.
