Question

Dau coroana si ma abonez!
Ar fi de preferat sa faceti pe o foaie sa inteleg totusi, va rog!​

Answer 1

Q=mcΔt

Δt=t-to

t0-temperatura initiala a apei

m=0,2kg

Q=66960J

Δt=Q/m*c

c apa=4185J/kg*K

Δt=66960J/0,2KG*4185J/Kg*K

Δt=66960J/837J/kg*K

Δt=80K

Δt=t-to

t=100C= 373,15 K

to=373,15-80=293,15K=20 grade C