Question

Alguém sabe responder?

Answer 1

Q = 3000
c = 1 cal/g°c
Ti = 20°
Tf = 70°c
m = ?

Q = m . c . ΔT
Q = m . c . (Tf - Ti)
3000 = m . 1 . (70 - 20)
3000 = m . 50
m = 3000/50
m = 60 g