Oxygen replaced by helium at the same temperature
A tank contains 29.0 kg of O2 gas at a gauge pressure of 10.0 atm.
If the oxygen is replaced by helium at the same temperature, how many kilograms of the latter will be needed to produce a gauge pressure of 7.50 atm?
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The activation energy Ea is 128.2 kJ/mol for a reaction. Calculate the fraction of collisions that would be energetic enough to react at 346.0 oC.
A 10.0 kg block of ice is at a temperature of -10.0oC. The block absorbs 4.11x106 J of heat. As a result the block of ice undergoes (a) an increase in temperature, (b) followed by a change in phase and (c) then another increase in temperature. wha
Indicate the percentage change of W's when pressure angle increased to 25 degree or reduced to 14.5 degree? What is your conclusion?
A 1.505 g sample of unknown was dissolved in 50 mL of benzene(density = 0.879 g/mL) Solution had melting point of 4.70 degree C.The freezing point of pure benzene is 5.53 degree C and the freezing point depression constant, Kf , is 5.12 degreeC/m.
Use the electron mass 9*10^-31 kg and h = 10^-34 Js and thelength of the edge of the square to determine the energy levels incm^-1 as a function of the two indicies nx andny for the particle in a square
What is the fundamental theoretical difference affecting overall thermal efficiency between a carnot cycle process and an ideal cycle process (such as a Diesel or Otto cycle)?
A common laboratory reaction is the neutralization of an acid with a base. When 60.0 mL of 0.25 M nitric at 24.5 degree C is added to 60.0 mL of 0.275 M NaOH at 24.5 degree C in a coffee cup calorimeter, the temperature of the mixture rises to 30.
Using the relations between coordinates and unit vectors in Cartesian and cylindrical coordinates, compute the velocity components in cylindrical coordinates for a general vector V = Vx i + Vy j + Vz k. Use your results to transform V = V j.
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During a training exercise, Lieutenant Carter was planning to maneuver Third Platoon across a river that created a linear danger area.
In broad terms, what justifications does Bryan offer for his platform of bimetallism, and to whom is his speech meant to appeal?
Question: Which of the following is a philosophy and proactive style of policing that seeks citizen input?
Question: Which of the following is considered the primary duty of policing?
There has been recent concern about a group of people who have been granted secret level security clearances, after which they went on
Using ONLY the information contained in the passage, select the response that reflects an assumption present in the passage.
What is the main goal of congress members, according to Mayhew? What are the three main activities congress members engage