Question

four meaasuring cylendars with least counts 1.0 ml 0.5 ml 0.2 ml and 2.5 ml are given which one among the following suitable for density of solid

Answer 1

instrument having smallest least count is suitable for measurement.

so 0.2 ml instrument is best.

Answer 2

Answer:

Step-by-step explanation:

Ice at 0°C has a total latent heat of

Q=m*L = 540*80 = 43200 cal.

Now for water to come at 0°C and it's state to remain as water, we need to remove heat from it which is given by,

Q= m*Cp*(∆T) = 540* 1* 80 = 43200 cal.

So, we can see that

Heat released by water to reach from 80°C to 0°C = heat required by ice to melt into water at 0°C.

So, the ice will melt to water and it's temperature will be 0°C.

Hence, the final state would be water at 0°C.

So, the answer is A.

Hope this help you.