1、m=ρV
Q放=mq=ρVq=900kg/m³×(70000000/1000)m³×44000000J/kg=2.772×10^15 J
2、Q吸=cm水(t1-t0)
Q放=Q吸
m水=Q放/c(t1-t0)=2.772×10^15 J/[4.2×10³J/kg×(100℃-10℃)]=7.33×10^9 kg
1、m=ρV
Q放=mq=ρVq=900kg/m³×(70000000/1000)m³×44000000J/kg=2.772×10^15 J
2、Q吸=cm水(t1-t0)
Q放=Q吸
m水=Q放/c(t1-t0)=2.772×10^15 J/[4.2×10³J/kg×(100℃-10℃)]=7.33×10^9 kg