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What is the change in length of a 2 m copper pipe if its temperature is raised from 21degrees C to 973degrees C?
Wiki User
∙ 12y ago
The change in temperature is 973-21 = 952C
The expansion over that range is 20.8 x 10 to the minus 6 per degree
The change in length over 2 meters is
20.8E-06 x 952 x 2 = 0.0396 meters
Wiki User
∙ 12y ago
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What is the mass of a piece of copper that undergoes a 25 degrees C temp change with the loss of 428 J of energy?
q = mass * specific heat * change in temperature 428 joules = (mass)(0.385 J/gC)(25o C) = 44 grams copper ============
Why did the composition in pennies change between 1981 and 1982?
because in 1982 there was a war going on and copper was short and they needed copper for their weapons so they stoped using copper for the so called "penny" and used zinc instead but they still used a copper collered coating. :) hope this helped because in 1982 there was a war going on and copper was short and they needed copper for their weapons so they stoped using copper for the so called "penny" and used zinc instead but they still used a copper collered coating. :) hope this helped
Is the copper wire positive or negative?
copper is positive
Is a is quarter made of copper?
Mostly. The core is 100% copper and the outer cladding is 75% copper + 25% nickel. Taken together that makes the coin about 83% copper overall.
How hot is 800 degrees celsius?
The temperature 800°C (which is the same as 1472°F) is much hotter than the temperature of molten lead or zinc, but not hot enough to melt copper, gold, or silver. The red part of a candle flame is about 800°C, while the blue part is hotter (1400°C).
What temperature does copper change from a solid to a liquid?
120.3 deg.c
How does the amount of copper chloride affect the temperature of the reaction?
The amount of copper chloride in a reaction can affect the temperature by influencing the rate of the reaction. Adding more copper chloride can increase the rate of reaction, leading to a faster rise in temperature. Conversely, reducing the amount of copper chloride can slow down the reaction and result in a lower temperature change.
What is the amount of energy in hot copper?
The amount of energy in hot copper is determined by its temperature and mass. This energy is typically measured in joules (J) or calories (cal). The energy content can be calculated using the specific heat capacity of copper and the change in temperature.
Copper is added to a solution of nitric acid The solution becomes hot and changes from colorless to dark blue What is the best explanation for the change in temperature?
The change in temperature is likely due to an exothermic reaction between copper and nitric acid, resulting in the release of heat. The change in color to dark blue may be due to the formation of copper nitrate in the solution.
Three things that you observe in a chemical change of mixture Mg-CuSO4?
Formation of a new substance: When magnesium reacts with copper sulfate, the blue color of copper sulfate fades as copper metal is formed, indicating a chemical change has occurred. Release of gas: In this reaction, bubbles of gas may be observed, which could be hydrogen gas being evolved as magnesium displaces copper from copper sulfate. Temperature change: The reaction between magnesium and copper sulfate is exothermic, meaning it releases heat. The mixture may feel warm or hot to touch during the reaction, indicating a temperature change has taken place.
What substance would absorb the most heat energy with the least change in temperature water or copper?
Copper would absorb more heat energy with less change in temperature compared to water due to its higher specific heat capacity. This means that copper can absorb more heat per unit mass before its temperature noticeably increases, while water's temperature would rise more easily when absorbing heat.
What is copper's phase at room temperature?
Copper is a solid at room temperature.
How does the change of temperature affect the rate of solubility in copper sulphate?
An increase in temperature generally increases the solubility of copper sulfate in water, as higher temperatures provide more energy to break apart the bonds holding the copper sulfate molecules together. This can result in more copper sulfate dissolving in the water at higher temperatures.
What is the colour of copper sulphate at room temperature?
Copper sulfate is typically blue in color at room temperature.
Is liquid at room temperature physical property of copper?
No. Copper is a solid at room temperature.
What is the phase state of copper at room temperature?
At the average room temperature of 24C, copper is a solid
Is melting copper an example of chemical change?
It can be. Temperature increases usually induce physical changes in the broad sense. If the change in temperature merely induces a state change (for instance, the copper is melted - becoming a liquid) then it is purely a physical change. Presuming that heating will occur in the presence of air, it will also increase the rate of oxidation and, therefore, be indirectly inducing a chemical change.
