Q1 = c1m∆T1
Q2 = c2m∆T2
Q1 : Q2 = c1∆T1 : c2∆T2
3Q2 : Q2 = c1*4∆T2 : c2*∆T2 = 4c1 : c2
c1 : c2 = 3 : 4
降低相等的温度:
Q1 = c1m∆T
Q2 = c2m∆T
Q1 : Q2 = c1m∆T :c2m∆T = c1 : c2 = 3 : 4