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How much heat is absorbed by water when 250g of iron is heated from 27 degrees Celsius to 300 degrees Celsius?
q = (250 g)(0.46 J/gC)(300 C - 27 C) = 3.1 X 104 Joules -------------------------
Two identical blocks of iron one at 10 degrees celsius and the other at 20 degrees celsius are put in contact suppose the cooler block cools to 5 degrees celsius and the warmer block warms to 25?
Violation of 2nd Law
What is 1-cm cube and your mass is 0.10g less than the mss of a 1-cm cube of iron?
Well, darling, a 1-cm cube is a tiny little thing, measuring 1 centimeter on each side. If your mass is 0.10g less than the mass of a 1-cm cube of iron, then you're just a lightweight compared to that chunk of iron. But hey, at least you're still a cube!
For what reasons are iron tests given?
To help in the differential diagnosis of different types of anemia; To assess the severity of anemia and monitor the treatment of patients with chronic anemia; To evaluate protein depletion
is it construct two wires of the same length one of copper and one of iron that would have the same resistance at the same temperature?
Yes, it is possible to construct two wires of the same length, one of copper and one of iron, that have the same resistance at the same temperature. The resistance of a wire is determined by its resistivity, length, and cross-sectional area, as given by the formula ( R = \frac{\rho L}{A} ). Since copper has a lower resistivity than iron, the copper wire would need a larger cross-sectional area than the iron wire to achieve the same resistance.
Molten iron is extremely hot averaging about 1500 The specific heat of iron is 0.46 How much heat is released to the atmosphere when 1 molten iron cools to room temperature?
0.46 * 1475 = 678.5 Kjoules (The specific heat is given in terms of joules/ gramme/degC, whilst the question refers to 1kg ie 1000g )
A particular sample of iron requires 562 Joules to raise its temperature from 25 degreee Celsius to 50 degrees Celsius. What must be the mass of the sample of iron?
The change in temperature is 25 degrees Celsius, meaning it takes 22.48 joules per degree of change. The specific heat of iron is 0.449 J/g degree Celsius. This means that the mass of iron must be 50.07 grams
Why was iron given that name?
iron was given iron becease it was the best thing tname it
When you are through using a soldering iron does cool it with water?
NO....it cools by itself.
Why does red hot liquid iron turn solid?
Its its liquid state the iron is "molten" As it cools It looses heat and solidifies.
How many joules of heat are given out when a piece of iron of mass 50grammes and specific heat capacity of 400joules cool from 80 degrees Celsius to 20 degree Celsius?
Where are you getting this specific heat number. With the other numbers there is no cancellation.
What is the change of molten iron cooling and solidifying?
As molten iron cools, its temperature decreases until it reaches its solidification point, at which point it forms solid iron. During this process, the atoms in the molten iron arrange themselves into a crystalline structure, transitioning from a liquid to a solid state. This solidification process is exothermic, releasing heat energy as the iron solidifies.
How does an iron cool down?
An iron cools down by losing heat energy to its surroundings through conduction, convection, and radiation. As the iron's temperature decreases, the molecules inside the iron slow down, resulting in a reduction of its thermal energy.
What is the first minerals to form when magma cools that are rich in iron calcium and magnesium?
The first minerals to form when magma cools and is rich in iron, calcium, and magnesium are typically olivine, pyroxene, and/or plagioclase feldspar. These minerals have high melting points and tend to crystallize early as the magma cools.
How does iron help a plant grow?
iron is in the water that is given to the plants
Specific heat of iron?
The correct term is 'specific heat capacity', not 'specific heat', and it is measured in joules per kilogram kelvin in SI. There are lots of sources of information on this topic on the internet, so why not do a search rather than have someone do one for you?
How much energy is needed to melt 1 metric ton of iron?
It takes approximately 2.4 million joules of energy to melt 1 metric ton of iron.
