A scientist developed a new metal alloy for use in cookware. The alloy has several properties that still need to be determined. One such property is the specific heat. Based on the alloy's composition, the scientist hypothesizes that the specific heat will be close to 0.490 : g.°C To determine the actual specific heat of the alloy, the scientist heats a 11.60 g piece of the alloy to 100.0 °C. He then places the metal into an insulated container holding 50.00 g of water ( CH.O = 4.184 ) with an initial temperature of 23.5 °C. Assume g.°C heat loss to the surroundings is negligible. Calculate the final temperature of the water assuming the scientist's prediction is correct. Final water temperature= The measured final temperature of the water is 26.4 °C. Is the scientist's prediction of the specific heat close to the true value? No. The prediction is too low. The measured value is over 0.540 . g.°C . No. The prediction is too high. The measured value is below 0.440 .
Latent heat and phase change
A physical process in which a conversion among the basic states or phases of matter, i.e., solid, liquid, and gas takes place under the effect of a certain temperature and pressure is referred to as a phase change. Generally, the phase change of a substance occurs when heat transfer takes place between the substance and its surroundings. Based on the direction in which heat transfer takes place, different types of phase changes can occur.
Triple Point of Water
The branch of physics in which observer deals with temperature related properties is called thermodynamics.
Boiling Point of Water
Everyday examples of boiling is, boiling milk, heating water. One would have observed that when we heat water it goes through various stages and at one point bubbles show in water, and water keeps splashing with bubbles bursting, we in layman terms say that water is boiling.
Freezing Point of Water
In general, the freezing point of water is 0° Celsius, or 32° Fahrenheit. This is the temperature at which water will ordinarily change from its liquid state to its solid state (ice). However, there are certain conditions that can affect the freezing point of water. For example, a liquid may be supercooled or contain impurities so that it does not freeze at the ordinary freezing point.
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