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Why is aluminum difficult to weld?
Aluminum is a bit more difficult to weld than steel , because of it's lower melting point. Also Aluminum takes more heat , because of it's property of absorbing and releasing the heat quicker. With the proper electrode , or rod , and amps to volt settings, along with a bit of practise , it can be quite simple . One usually has to have a faster travel speed with the filler rod or electrode.
Is heat concrete or abstract?
Heat is considered an abstract concept because it refers to the energy transferred between systems or objects due to a temperature difference. While it can be measured and observed through physical changes, such as temperature increases, heat itself represents a process rather than a tangible substance.
How many BTU are required to raise the temperature of one gallon of water one degree Fahrenheit in one hour?
This is a pretty straightforward calculation. By definition, a BTU is the amount of energy required to raise one pound of water one degree F. But you have one gallon of water, which weighs approximately* 8.34 pounds. So, you'd need 8.34 BTU to increase one gallon of water one degree F. Note how the amount of time was not important. Whether you heat the water slowly or quickly doesn't matter. You will still require 8.34 BTU to raise the temperature of a gallon of water one degree F. * I say approximately because the weight of water varies slightly with its temperature. Water is at its densest at 4 degrees Celsius (39 degrees F). A gallon of water at temperatures above and below that value will weigh less.
What is the function of superheater?
The function of the super heater is to increase the temperature of the steam above saturation by utilising the heat from the flue gases.
Why is the triangle symbol in front of the T but not the Q in the equation Q equals m x T x C?
The triangle is the Classical Greek Capital Letter ' Delta'. 'D' in modern English. 'Delta/D' means the difference in temperature. Q = m DeltaT c Energy (joule) = mass(kg) X (Difference in Temperature)T(K) X specific heat capacity. Ignoring the other terms, if the starting temperature is 273 K and the final temperature is 298K, then 'DeltaT' = ( 298-273 = 25K) Note the temperature scale is Kelvin(K) because this eliminates the use of 'Zero/ 0oC'. in the system.
What does the amount of heat needed to raise an objects temperature depend on?
The amount of heat needed to raise an object's temperature depends on its mass, its specific heat capacity, and the temperature change desired. Objects with higher mass require more heat to raise their temperature, while those with higher specific heat capacities absorb more heat for the same temperature change.
Which would have higher temperature change water or aluminum?
Starting from the same temperature and for the same amount of heat input, aluminum would wind up with a higher temperature than water because water has a higher heat capacity (it takes more energy to raise its temperature) than aluminum.
How much heat energy is needed to raise the temperature of a 055kg sample of aluminum from 22.4 degrees celsius to 94.6 degrees celsius?
The heat energy required can be calculated using the formula: Q = mcΔT, where Q is the heat energy, m is the mass of the aluminum (0.055 kg), c is the specific heat capacity of aluminum (900 J/kg°C), and ΔT is the change in temperature (94.6°C - 22.4°C = 72.2°C). Plugging in the values, we get Q = 0.055 kg * 900 J/kg°C * 72.2°C = 3582.7 J. Hence, 3582.7 Joules of heat energy is needed to raise the temperature of the aluminum sample.
Does aluminum need more or less energy than lead to raise its temperature one degree?
Aluminum needs less energy than lead to raise its temperature by one degree, as aluminum has a lower specific heat capacity compared to lead. This means that aluminum can absorb and release heat more easily than lead for the same change in temperature.
How much heat must be added to 50 grams of aluminum at 25c to raise temperature to 135c?
The specific heat capacity of aluminum is 0.897 J/g°C. By using the formula Q = mcΔT, where Q is the heat energy, m is the mass, c is the specific heat capacity, and ΔT is the change in temperature, you can calculate that 5,381.25 Joules of heat energy must be added to raise the temperature of the aluminum from 25°C to 135°C.
What is the amount of heat needed to raise that temperature of 1 kilogram of water 1 degree Celsius?
The amount of heat needed to raise the temperature of 1 kilogram of water by 1 degree Celsius is 4186 Joules, which is the specific heat capacity of water.
Is the amount of heat needed to raise the temperature of 1 kilogram of water 1 degree Celsius.?
Yes, one calorie is the amount of heat needed to raise the temperature of 1 kilogram of water 1 degree Celsius.
What are the factors that determine the amount of energy needed to raise the temperature?
The amount of energy needed to raise the temperature of a substance depends on its mass, specific heat capacity, and the desired temperature increase. The formula to calculate this is: Q = mcΔT, where Q is the energy, m is the mass, c is the specific heat capacity, and ΔT is the temperature change.
Will aluminum heat up in the sun?
Yes, aluminum will heat up in the sun as it absorbs and retains heat well. Its thermal conductivity allows it to quickly raise in temperature when exposed to sunlight.
Which of these substances requires the least amount of energy to raise its temperature 'wood' 'water' 'gold' or 'aluminum'?
Aluminum requires the least amount of energy to raise its temperature compared to wood, water, and gold. This is because aluminum has a lower specific heat capacity, meaning it can heat up more quickly with less energy input.
Will concrete brick aluminum or copper take most energy to increase its temperature?
Copper will take the most energy to increase its temperature, followed by aluminum and then concrete brick. This is because copper has a higher specific heat capacity compared to aluminum and concrete brick, meaning it requires more energy to raise its temperature.
How many kilocalories of heat are needed to raise the temperature of a 38.9 g sample of aluminum metal by 83.7Celiues?
To calculate the heat energy required to raise the temperature of a substance, you can use the formula: q = mcΔT, where q is the heat energy, m is the mass, c is the specific heat capacity, and ΔT is the temperature change. The specific heat capacity of aluminum is 0.897 J/g°C. First, convert the mass of aluminum to kilograms by dividing by 1000. Then, use the formula to calculate the heat energy in joules and convert it to kilocalories.
