Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074



Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

To make a glass of iced tea, you pour 250 mL of tea, whose temperature is 18.2 °C, into a glass containing five ice cubes. Each cube has a mass of 15 g. What quantity of ice will melt, and how much ice will remain floating in the tea? Assume iced tea has a density of 1.0 g/mL and a specific heat capacity of 4.2 J/g · K, that energy is transferred only as heat within the system, ice is at 0.0 °C, and no energy is transferred between system and surroundings.

Interpretation Introduction


The mass required for melting of ice at definite volume at two different temperatures and the amount of ice float on the tea has to be determined.

Concept Introduction:

Heat energy required to raise the temperature of 1g of substance by 1k.

Energy gained or lost can be calculated using the below equation.



  q= energy gained or lost for a given mass of substance (m)

  C =specific heat capacity,

  ΔT= change in temperature.


Assume the sum of two energy quantities are zero.

Use the below equation to find out the sum of energy quantities.


Substitute for the two energy quantities

Specific heat capacity of tea is 4

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