Question

How much heat would be required to raise the temperature of a 525 g sample of copper from 20.° C to 100.° C? (Specific

heat of copper = 0.385 J/g-K)
A) -110 000 J
B) 16 000]
C) -16 000]
D 110 000 J

Answer 1

Okay, here are the steps to solve this problem:

The mass of the copper sample is 525 g

The specific heat of copper is 0.385 J/kg-K

The initial temperature is 20°C

The final temperature is 100°C

To convert from °C to K: T(K) = T(°C) + 273

So:

Initial T (K) = 20°C + 273 = 293 K

Final T (K) = 100°C + 273 = 373 K

Temperature change = 373 - 293 = 80 K

Heat Required = (Mass * Specific Heat * Temperature Change)

= (525 g * 0.385 J/kg-K * 80 K)

= 16000 J

So the answer is B: 16000 J

Step-by-step explanation: