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A 38 kg block of lead is heated from 26 degrees Celsius to 180 degrees Celsius how much heat energy does the block of lead absorb to increase its temperature this much?
Wiki User
∙ 14y ago
The specific heat of lead is 0.0305 K cal/kg deg C. The heat absorbed will be 38x(180-26)x0.0305 = 178.5 Kcal = 746.1 K joules
Wiki User
∙ 14y ago
Wiki User
∙ 14y ago1,017,640
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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.
What happens to the temp of a cup of coffee when a sugar cube is added. Does the temperature increase or decrease and why?
decrease,because the cube of sugar absorb some heat
What is basic difference between melting and fusion?
Melting point is the temperature at which something melts. Like ice has a melting point of 0 Celsius. The heat of fusion is the heat energy that is absorbed (or released) when a substance melts (or freezes) an is measured in energy units, either calories or joules. Ex. One gram of ice must absorb 80 calories of heat energy to change into liquid water.
Why does an ice cube stay at 0c for a long time?
The enthalpy of fusion, or Specific heat of fusion/melting is the temperature that it takes for a substance to freeze/melt. Generally it is much greater than it would ordinarily take for the substance to increase 1 degree Celsius in either solid or liquid phase. So, while at the freezing/melting point, the substance can absorb energy without changing the temperature during the state change.
Why do increase temperature affect how quickly a solid solute dissolves?
Heat increase the speed at which a solid dissolves as it causes the molecules to disintegrate and spread away from each other. Heat will convert a solid into a liquid and eventually into gas.
Will CO2 be more or less soluble in water 100 degrees Celsius or 0 degrees Celsius?
As temperature increases, the ability for water to absorb CO2 decreases. That is why we see higher CO2 when temperature rises in our atmosphere.
Does mars have a temperature of 180 degrees celsius?
The temperature of Mars is between -50 and 25 degrees Celsius. The temperature for Venus is among 300, 500 and 600 degrees Celsius. Venus never attained a temperature of 0 degrees Celsius though Mercury attains it because of the thicker surface to absorb more heat from the sun when serious burns result from 100c water or steam something.
What is true about waters specific heat?
Water must to absorb 4,184 Joules of heat for the temperature of one gram of water to increase 1 degree Celsius (°C).
Years ago, a 20 kg block of ice was used daily in the home icebox to keep food cool The temperature of the ice was zero degrees Celsius when delivered How much heat did the ice absorb by the time it?
6,660,000
How does the earth temperature drops?
1) oceans absorb carbon-dioxide from the atmosphere, thereby bringing down the temperature 2) oceans emit heat from the sunlight they absorb and increase the temperature of the surrounding atmosphere.
How many calories does a cooling system absorb when it holds 12 liters of water and raises from 20 degrees celsius to 70 degrees celsius?
There are 1000 g in one liter Use the formula Q=mc(delta)T Q=1200g(1calorie/g degrees celsius)(70 degrees - 20 degrees) Q=60,000 calories Q=60 kilocalories
Years ago a 20 kg block of ice was used daily in the home icebox to keep food cool The temperature of the ice was zero degrees Celsius when delivered How much heat did the ice absorb by the time it?
6,660,000 J
What continues to absorb solar energy and increase in temperature as long as the suns rays hit it?
Land
What gets colder wood or metal?
If the surrounding air is zero degrees Celsius, steel and wood must have also the temperature of zero degrees Celsius. Wood is not warmer as many people believe. Although the temperatures are equal, you will perceive the steel as colder to touch. This is because it will absorb heat from your fingers more quickly than the wood (as it attempts to reduce your finger temperature to zero).
Years ago, a 20 kg block of ice was used daily in the home icebox to keep food cool. The temperature of the ice was zero degrees Celsius when delivered. How much heat did the ice absorb by the time it all melted?
6,660,000 J
Does liquid water at 0 degrees Celsius or ice at 0 degrees Celsius cool Coke better?
Both ice and liquid water can exist at 0 degrees C. However, ice has a very significant heat of fusion (the number of calories required to melt melt each gram), whereas water has only its 1 calorie per gram per degree C specific heat. Therefore, ice (which must melt before it can go above 0 degrees) must absorb much more heat to increase its temperature than water at 0 degrees. In consequence, ice is far more effective as a cooling agent.
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.
