20. Heat and Temperature
Calorimetry with Temperature and Phase Changes
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- Textbook Question
A vessel whose walls are thermally insulated contains kg of water and kg of ice, all at °C. The outlet of a tube leading from a boiler in which water is boiling at atmospheric pressure is inserted into the water. How many grams of steam must condense inside the vessel (also at atmospheric pressure) to raise the temperature of the system to °C? You can ignore the heat transferred to the container.
722views2rank - Textbook Question
A -kg silver ingot is taken from a furnace, where its temperature is °C, and placed on a large block of ice at °C. Assuming that all the heat given up by the silver is used to melt the ice, how much ice is melted?
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An insulated beaker with negligible mass contains kg of water at °C. How many kilograms of ice at °C must be dropped into the water to make the final temperature of the system °C?
2299views3rank - Textbook Question
(II) High-altitude mountain climbers do not eat snow, but always melt it first with a stove. To see why, calculate the energy absorbed from your body if you eat 1.0 kg of -15°C snow which your body warms to body temperature of 37°C.
257views - Multiple ChoiceWhat is the mass of the ice cube initially taken from the freezer, given that the final temperature of the system is 17.0 °C?134views
- Multiple ChoiceWhat mass of steam at 100°C must be added to 1.90 kg of ice at 0°C to yield liquid water at 16°C? The heat of fusion for water is 333 kJ/kg, the specific heat is 4186 J/kg°C, and the heat of vaporization is 2260 kJ/kg.142views