Question

What is the heat capacity of a metal slug if a temperature rise from 25°C to 54°C requires 135 J?

a) 0.21 J/°C
b) 4.7 J/°C
c) 0.60 J/°C
d) 2.5 J/°C
e) -4.6 J/°C

Answer 1

The heat capacity of the metal slug is approximately 0.516 J/°C.

Step-by-step explanation:

The heat capacity of a metal slug can be calculated using the formula:

Heat capacity = q / (mass x ΔT)

Given that the temperature rise is from 25°C to 54°C, the ΔT is 29°C and the heat required is 135 J. Let's assume the mass of the metal slug is 'm'.

135 J = m x 0.14 J/g°C x 29°C

135 J = 0.14 m x 29 J/g

m = 135 J / (0.14 J/g°C x 29°C)

m ≈ 0.516 g

Therefore, the heat capacity of the metal slug is approximately 0.516 J/°C.