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How many joules are given off when 3.50kg of iron cools from 110 to 22?
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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
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
How do you calculate percentage in iron oxide?
The percentage of iron oxide in iron oxide is ... yep, you guessed ... 100%!
What does iron plus lead equal?
An alloy of iron and lead.
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 )
What is the change of molten iron cooling and solidifying?
When molten iron cools and solidifies, this is called "fusion".
A piece of iron absorbs an amount of heat when it is heated from 22 degrees Celsius to 28 degrees Celsius- How many joules does it absorb?
There is not enough information in this problem to answer the question. You must know the mass of the iron to find the amount of joules used to heat the iron.
When you are through using a soldering iron does cool it with water?
NO....it cools by itself.
Why was iron given that name?
iron was given iron becease it was the best thing tname it
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.
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
how many grams iron will absorb 900 joules of heat and only change temperature by .2 degrees?
200 grams
How does a thermostat control the amount of heat being given off by iron?
the thermostat heats up and is spring loaded when there is enough heat it will close and stop the heating element, when it cools it opens again and turns the heat back on, hope this helps
How does iron help a plant grow?
iron is in the water that is given to the plants
How much heat is released when 1 kg of molten iron cools?
The answer will depend on its starting temperature and its final temperature.
