{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Hard heat lost equals heat gained problem

# Hard heat lost equals heat gained problem - Complex...

This preview shows pages 1–3. Sign up to view the full content.

Complex Calorimetry Problems The diagram on the left shows the uptake of heat by 1 kg of water, as it passes from ice at -50 ºC to steam at temperatures above 100 ºC, affects the temperature of the sample. A: Rise in temperature as ice absorbs heat. B: Absorption of heat of fusion. C: Rise in temperature as liquid water absorbs heat. D: Water boils and absorbs heat of vaporization. E: Steam absorbs heat and thus increases its temperature. from- http://www.physchem.co.za/Heat/Latent.htm http://dbhs.wvusd.k12.ca.us/webdocs/Thermochem/Time-Temperature-Graph.html ***UNITS NOTE J g -1 ºC -1 = J / g ºC; any exponent to the -1 is placed in the denominator. The specific heat capacity of water is 4.18 J g -1 ºC -1 . The specific heat capacity for Ice and Steam are 2.09 J g -1 ºC -1. The heat of fusion of ice is 334 J g -1 , and the heat of vaporization of water is 2260 J g -1 . EXAMPLE Calculate the amount of heat required to completely convert 50 g of ice at -10 ºC to steam at 120 ºC.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Heat is taken up in five stages: 1. The heating of the ice 2. The melting of the ice,
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 3

Hard heat lost equals heat gained problem - Complex...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online