Question

How much energy is lost by a 348g iron statue that goes from a temperature of 299 K to a temperature of 280 K?

Answer 1

First, we need to convert the mass of the iron statue from grams to kilograms. There are 1000 grams in a kilogram, so the mass of the statue is 0.348 kilograms.
Next, we need to find the specific heat capacity of iron. The specific heat capacity of iron is approximately 450 J/(kg*K).
Now, we can calculate the energy loss using the formula:
Energy lost = 0.348 kg * 450 J/(kg*K) * (280 K - 299 K)
Simplifying this expression, we have:
Energy lost = 0.348 kg * 450 J/(kg*K) * (-19 K)
Energy lost = -6,246 J