What is the rate of diffusion of helium gas
What is the rate of diffusion of helium gas at the same temperature if nitrogen gas has an average rate of diffusion of 0.126cm/s at the room temperature?
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What mass in grams of steam at 100°C should be mixed with 298 g of ice at its melting point, in a thermally insulated container, to generate liquid water at 15.0°C? The specific heat of water is around 4186 J/kg•K. The latent heat of
Determine the change in molar entropy of aluminum that is heated from the 600 to 700°C. The heat of fusion is 393J/g, the melting point of Al is 660°C and the heat capacities of the liquid and solid may be taken as 34.4 and 31.8 J/
Determine the number of molecules in a deep breath of air whose volume is 2.59 L at the body temperature, 37°C, and which is having the pressure of 743torr.
The ball is launched at an angle of θ = 51degrees above the ground. Find out the horizontal and vertical components of the launch velocity. Avoid acceleration due to gravity for the problem.
Transrail is bidding upon a project that it figures will cost $400,000 to perform. Using 25% markup, it will charge $500,000, netting profit of $100,000. But, it has been learned that another company,
Calculate how many grams of nickel must be added to 500 grams of copper to form an alloy that has a liquidus temperature of 1350C? Calculate the ratio of the number of nickel atoms to copper atoms in this alloy?
A dolphin leaps out of the water at the angle of θ = 35 degrees above the horizontal. The horizontal component of the dolphin's velocity is v = 7.7 m/s. Determine the magnitude of the vertical component of the velocity.
What is the molarity of the unknown phosphoric acid solution? A 20.00 mL sample of phosphoric acid was neutralized with33.44 mL of 0.109 M NaOH.
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