Question

If the specific heat of copper is 0.711 J/g•°C, how much copper would it take if the heat given off is 54.85 calories and the temperature change is 205°C.

Answer 1

Answer:

m = 1574.02 g

Explanation:

Given data:

Specific heat capacity of copper = 0.711 j/g.°C

Mass of copper = ?

Calories given off = 54.85 Cal (54.85 × 4184 = 229492.4 j)

Temperature changes = 205°C

Solution:

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

Q = m.c. ΔT

m =  Q / c.ΔT

m = 229492.4 j / 0.711 j/g.°C.205°C

m = 229492.4 j / 145.8 j/g

m = 1574.02 g