Answer:
The answer to your question is mass = 0.824 kg or mass = 82.4 g
Explanation:
Data
Mass = m
Energy = E = 3000 J
Temperature 1 = T1 = 12°C
Temperature 2 = T2 = 40°C
Specific heat of C = 1300 kJ/kg°K
Process
1.- Convert temperature to Kelvin
T1 = 273 + 12 = 285°K
T2 = 273 + 40 = 313°K
2.- Substitution
Energy = m C (T2 - T1)
- Solve for m
mass = Energy / C(T2 - T1)
mass = 3000 / 1300 (313 - 285)
mass = 3000 / 1300(28)
mass = 3000 / 36400
mass = 0.082 kg
or mass = 82.4 g
