Question

Find the amount of heat supplied to decrease the volume of an ice water mixture by 1 cm^3 without any change in temperture

Answer 1

The amount of heat supplied to decrease the volume of an ice water mixture by $1 cm^3$ without any change in temperature.

Explanation.

• We know that the density of ice is less so when some heat would be supplied, ice gets converted into water and as a res. the volume of $H_2{O}$ would decrease. Suppose x gm of ice converts into x gm of $H_2{O}$ .
• As volume is equal to mass by density, the volume of x gm of ice at start would be equal to mass/density and x/ 0.9. The final volume of $H_2{O}$ would be equal to x/ 1 .
• Therefore, x by 0.9 minus x/ 1 would give us 1 which gives us x to be equal to 9 gm.
• The amount of heat supplied would be equal to the amount office multiplied by L which is 9 multiplied to 80 giving us 720 cal.