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How valid is the assumption that the initial temperature of the steam is 100 degrees celsius?
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500cm3 of ideal gas at 40 degrees Celsius and 200kpa absolute is compressed to 250cm3 and cooled to 20 degrees Celsius.What is the final absolute pressure?
Assuming the amount of gas remains constant, we can use the ideal gas law to calculate the final absolute pressure. The initial pressure (P1) is 200 kPa and the final volume (V2) is 250 cm3. The initial temperature (T1) is 40 degrees Celsius or 313.15 Kelvin, and the final temperature (T2) is 20 degrees Celsius or 293.15 Kelvin. Using the equation (P1 * V1) / T1 = (P2 * V2) / T2, we can solve for the final absolute pressure (P2), which is approximately 400 kPa.
The temperature has fallen from 1 degrees to -13 degrees how far has it fallen?
change = final - initial -13 - 1 = -14 It has fallen 14 degrees.
What is initial temperature?
This is the temperature at which an experiment begins.
How many joules of energy are needed to heat 25.0 grams of steam from 100.0 degrees Celsius to 29.25 degrees Celsius?
Use this formula. q(in Joules) = Mass * specific heat * change in temperature I will use specific heat of water at 25 C. You can look up specific heat of steam. You say " heat to " so I assume you have final and initial heat backwards. q = 25.0 grams H2O * 4.180 J/gC * (100.0 C - 29.25 C ) q = 7393 Joules
How much thermal energy is needed to raise the temperature of 10.0 g of water 15.0 degrees Celsius?
Heat of vaporization of water is 40.7 kJ/mol so convert grams of water to moles of water and then convert moles of water to kJ of energy using the above fact. 10g H2O * (1mol/1.008*2+16)=mol H20
If 200g ice cube with an initial temperature of -12 degrees celsius is placed in 1 kg of warm water with an initial temperature of 40 degrees celsius If you ignore any heat losses to the environment?
It depends on the lengh of your penis
How much heat must be added to 120g of water at an initial temperature at 60 degrees Celsius?
a-4800
Why can you assume the initial temperature of ice is 0 degrees Celsius?
Water freezes into ice at 0 degrees Celsius. Anything above that it will melt. Therefore ice must be 0 or below
A vessel and water have a equivalent mass of 4kg and are at 15 degrees Celsius.after a hot iron object of 2kg is immersed in the water,the temperature increased to 23 degrees Celsius ,calculate the initial temperature?
4 pounds
What is substances specific heat?
The amount of heat required to increase the temperature of the substance to 1 degree greater than that of the initial temperature of the body!
What is the amount of heat required to change the temperature of 200.0 grams of aluminium to 10 degrees Celsius?
Q=m.c.Δt (m: mass, c: specific heat capacity, Δt :change in temperature)(specific heat capacity of aliminum is 0.90 J/K.g = 200 x 0.90 x 10 (if initial temperature is 0)(if not, then Δt=final temperature-initial temperature) =1800 Joules
500cm3 of ideal gas at 40 degrees Celsius and 200kpa absolute is compressed to 250cm3 and cooled to 20 degrees Celsius.What is the final absolute pressure?
Assuming the amount of gas remains constant, we can use the ideal gas law to calculate the final absolute pressure. The initial pressure (P1) is 200 kPa and the final volume (V2) is 250 cm3. The initial temperature (T1) is 40 degrees Celsius or 313.15 Kelvin, and the final temperature (T2) is 20 degrees Celsius or 293.15 Kelvin. Using the equation (P1 * V1) / T1 = (P2 * V2) / T2, we can solve for the final absolute pressure (P2), which is approximately 400 kPa.
What is temperature and what does it measure?
Temperature is a measure of thermodynamic activity. Molecules of substances vibrate due to thermodynamic energy. When the substance gains heat, this energy increases and the vibrations become more vigorous. This is reflected by an increase in temperature.
If one were trying to prove that an angle is right by indirect proof what should the initial assumption be?
The initial assumption is "that it is NOT a right angle"
If the oven will increase by 45 degrees per minute on the initial turn on the temperature is 70 degrees. what will the temperature be after 7 minutes?
(7 * 45) + 70 = 385
Why is it desirable to have the water a few degrees colder than room temperature when the initial temperature is taken?
It is desirable to have water a few degrees colder than room temperature when the initial temperature was taken for accuracy to be achieved. This is affected by the amount of heat energy which escapes the surroundings when the water is above room temperature.
) The temperature of a sample of water changes from 10 and degC to 20 and degC when the water absorbs 100 calories of heat. What is the mass of the sample?
one calorie of heat is able to raise one gram of water one degree Celsius so 400 calories could raise 1g of water 400 degrees, so it would raise the 80g by(400/80) 5 degrees Celsius plus the initial temp of 10 degrees, the 80g of water would have a final temp of 15 degrees Celsius
