Warmte antwoorden

Antwoorden

1.        Q = m * c * ΔT

Q = 200 * 4,18 * 10

Q= 8.360 J

2.       Q = m * c * ΔT

Q= 500 * 0,45 * (75 - 25)

Q= 11.250 J

3.        Q = m * c * ΔT

Q= 300 * 0,90 * (60 - 20)

Q= 10.800 J

4.        Q = m * c * ΔT

Q= 250 * 4,18 * (80 - 30)

Q= 52.250 J

5.        m = Q / (c * ΔT)

m= 5.000 / (0,39 * 60)

m= 213,7 g

6.        m= Q / (c * ΔT)

m= 10.000 / (0,45 * 50)

m= 444,4 g

7.        m = Q / (c * ΔT)

m= 15.000 / (2,0 * 50)

m= 150 g

8.   ΔT= Q / (m * c)
ΔT= 10000 / (400 * 0,385)
ΔT= 64,94°C

9.   ΔT= Q / (m * c)
ΔT= 1800 / (250 * 0,45)
ΔT= 16°C

10.  Q = P * t → ΔT = Q / (m * c)
Q = 500 * (5 * 60) = 150000 J
ΔT = 150000 / (2000 * 4,18)
ΔT=  17,94°C