How much heat is required to raise the temperature of a 125g block of iron from 17.5 degrees celcius to 82.3 degrees celcius?

Look at the Al problem.

65

45 To calculate the amount of heat required to raise the temperature of a substance, you can use the equation:

Q = mcΔT

Q: Heat energy (in joules)
m: Mass of the substance (in grams)
c: Specific heat capacity of the substance (in J/g°C)
ΔT: Change in temperature (in °C)

In this case, we need to find the value of Q for a 125g block of iron, with a change in temperature from 17.5°C to 82.3°C.

First, we need to determine the specific heat capacity of iron. The specific heat capacity of iron is approximately 0.45 J/g°C.

Next, we can calculate the change in temperature, ΔT, by subtracting the initial temperature (17.5°C) from the final temperature (82.3°C):

ΔT = 82.3°C - 17.5°C
ΔT = 64.8°C

Now we can substitute the values into the formula:

Q = (125g) * (0.45 J/g°C) * (64.8°C)

Simplifying the expression:

Q = 3645 J

Therefore, it would require 3645 joules of heat energy to raise the temperature of a 125g block of iron from 17.5°C to 82.3°C.