Question

How much heat is needed to melt 16.5kg of silver that is initially at 20*C?

Answer 1

To melt 16.5kg of silver, it would take 186.45 kJ of heat.

Step-by-step explanation:

To find the amount of heat needed to melt 16.5kg of silver, we need to use the equation Q = m ×

L, where Q is the heat transfer, m is the mass of the substance, and L is the specific heat of the substance. The specific heat of silver is 0.24 J/g°C, which means it takes 0.24 Joules of energy to raise the temperature of 1 gram of silver by 1 degree Celsius. However, in this case, we are interested in melting the silver, so we need to use the heat of fusion instead of the specific heat. The heat of fusion for silver is 11.3 kJ/kg. Therefore, the amount of heat needed to melt 16.5kg of silver is:

Q = m × L

Q = (16.5kg)(11.3 kJ/kg)

Q = 186.45 kJ

So, it would take 186.45 kJ of heat to melt 16.5kg of silver.

Answer 2

How much heat is needed to melt 16.5kg of silver that is initially at 20*C?

Answer:We know that at 20*C the silver is cool solid. We first have to find the and raise the temperature of the silver to its melting point and finally e have to cause a solid-liquid phase transition at the melting point. We will also need the specific heat of silver and the het fusion and its melting point.

I hope it helps, Regards.