Question

what is the final temperature of the mixture​ nan.no na​

Answer 1

Answer:

The total heat lost by the water will be equal to the sum of heat energy needed to change the temperature of ice from given to zero degrees and latent heat to change the state of matter and heat absorbed by water which is melted ice.

Formulas used:

msΔT=m1s1ΔT+m1L+m1s1(ΔT)2

Complete answer:

Let us write down all the given values,

mass of ice, mass of water, temperature of ice, temperature of water, specific heat of ice, latent heat of water and final temperature as m1=5g,m=20g,T2=−100C,T1=300C,s1=0.5calg−10C,L=80calg−1,T

Now, the total heat lost by water is equal to the sum of the energy needed to change ice to zero degrees plus the latent heat to change the state of ice plus the heat absorbed to get into final temperature.

That is,

msΔT=m1s1ΔT+m1L+m1s1(ΔT)220(1)(30−T)=5(0.5)(0+10)+5(80)+5(1)(T−0)600−20T=25+400+5TT=70C

Therefore, the final temperature of the mixture will be 70C.