Question

The temperature of a sample of iron with a mass of g changed from 50.4C to 25.0°C with the release of 197.0 J of heat . What is the specific heat of iron in J/g^ C

Answer 1

The specific heat of iron cannot be calculated without the mass of the iron sample. The student must provide the mass of the iron to proceed with calculating specific heat using the formula q = mcΔT.

Step-by-step explanation:

To find out the specific heat of iron, given that the iron sample released 197.0 J of heat while cooling from 50.4°C to 25.0°C, we will use the formula:

q = mcΔT

Where q is the heat transfer (in joules), m is the mass of the substance (in grams), c is the specific heat capacity (in J/g°C), and ΔT is the change in temperature (in °C). Solve for c:

c = q / (mΔT)

However, the student didn't provide the mass of the iron sample (m is not given), c cannot be determined from the information provided.

The student would need to provide the mass of the iron sample to calculate the specific heat. Therefore, no calculation can be done until we know the mass of the sample.