Question

Suppose that 100 grams of water at 50.0°C is placed in contact with 200 grams of iron at 30.0°C. The final

temperature is 46.5°C. The specific heats of water and iron respectively, are 4.18 and 0.45 joules per gram times
Celsius. How much heat energy did the iron gain?
1.500
12,000J
21.000
1.000J

Answer 1

The answer would be 1.5 kJ.

Step-by-step explanation:

When you use the equation q = m x c x ∆T you will be able to find the energy gained or lost. The data for the water in this case is just there to distract you so ignore it. :D