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nestergurl101
22.11.2019 •
Physics
Exactly 15.5 ml of water at 23.0 °c is added to a hot iron skillet. all of the water is converted to steam at 100.0°c. the mass of the skillet is 1.20 kg. what is the change in temperature of the skillet?
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Ответ:
Explanation:
Given:
Volume of water,![V=15.5\times 10^{-3}\ L=15.5\times 10^{-3}\ m^3](/tpl/images/0385/5932/1a7eb.png)
initial temperature of water,![T_i=23^{\circ}C](/tpl/images/0385/5932/db1fb.png)
final temperature of water before forming steam,![T_f=100^{\circ}C](/tpl/images/0385/5932/549fc.png)
mass of hot skillet,![m_s=1.2\ kg](/tpl/images/0385/5932/0698a.png)
Usually skillets are made of cast iron and cast iron has a specific heat capacity of :
Specific heat of water,![c_w= 4186\ J.kg^{-1}.K^{-1}](/tpl/images/0385/5932/16aaa.png)
Latent heat of vaporization of water,![L_v=2.26\times 10^6\ J.kg^{-1}.K^{-1}](/tpl/images/0385/5932/3deac.png)
Now, mass of water:
Quantity of heat absorbed by the water of 23 degree Celsius to a point just before steaming:
Quantity of heat absorbed by the water to vapourize:
∴Total heat lost by the skillet:
For change in temperature:
Ответ:
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