c1=0.46×10ˆ3J/(kg.℃)m1=200g=0.2kg,t01=100℃,m2=150g=0.15kg,t02=20℃,t=40℃
不计热量的损失,Q吸=Q放
即c2m2(t-t02)=c1m1(t01-t)
c2=c1m1(t01-t)/m2(t-t02)
=[0.46×10ˆ3J/(kg.℃)*0.2kg*(100℃-40℃)]/[0.15kg*(40℃-20℃)]
=1.84×10ˆ3J/(kg.℃)
答:此液体的比热容是1.84×10ˆ3J/(kg.℃)
c1=0.46×10ˆ3J/(kg.℃)m1=200g=0.2kg,t01=100℃,m2=150g=0.15kg,t02=20℃,t=40℃
不计热量的损失,Q吸=Q放
即c2m2(t-t02)=c1m1(t01-t)
c2=c1m1(t01-t)/m2(t-t02)
=[0.46×10ˆ3J/(kg.℃)*0.2kg*(100℃-40℃)]/[0.15kg*(40℃-20℃)]
=1.84×10ˆ3J/(kg.℃)
答:此液体的比热容是1.84×10ˆ3J/(kg.℃)