1 - Kr (Slowest)
2 - Ar
3 - N2
4 - H2 (Fastest)
Compute the root-mean-square speed of H2 molecules in a sample of hydrogen gas at a temperature of 31°C. ms-1 We were u...
Compute the root-mean-square speed of Ar molecules in a sample of argon gas at a temperature of 175°C. ms!
Compute the root-mean-square speed of H2 molecules in a sample of hydrogengas at a temperature of 169°C.
Compute the root-mean-square speed of Ar molecules in a sample of argon gas at a temperature of 191°C.
At what temperature is the root-mean-square speed of nitrogen molecules equal to the root-mean-square speed of hydrogen molecules at 46 oC? (Hint: The molar mass of hydrogen atoms is 1.008 g/mol and of nitrogen atoms is 14.007 g/mol. The molar mass of H2 is twice the molar mass of hydrogen atoms, and similarly for N2.) The answer is in degree C.
The root-mean-square speed of the molecules in a gas in an indication of the temperature of this gas. Shown below is the spectrum of three stars of different surface temperature. The x-axis displays the wavelength of the light emitted by the star. Shorter wavelength corresponds to higher energy of the gas, longer wavelength to lower energy. Stars are primarily made of Hydrogen. Calculate vrms for the three stars shown in the figure. How do these values compare to the rms...
Calculate the root-mean-square (rms) speed (in m/s) of butane (C,H10) gas molecules at a temperature of 475 K HINT X m/s Enter a number
Calculate the root-mean-square (rms) speed (in m/s) of propane (C3H8) gas molecules at a temperature of 270 K.
The molecules of a certain gas sample at 375 K have a root-mean-square (rms) speed of 271 m/s. Calculate the most probable speed and the mass of a molecule. Most probable speed: Number 0 m/s Molecular mass: Number
The root mean square speed of H2 molecules at 25 °C is about 1.6 km/s. What is the root mean square speed of a N2 molecule at 25 °C? 3 PT 7.(3 ponts) An aluminum kettle weighs 1.05 kg. a. What is the heat capacity of the kettle? 1. (2 points) Using the table of standard enthalpies of formation, answer the questions below: a. What mass of carbon monoxide must be burned to produce 175 kJ of heat under standard...
1) Calculate the root mean square speed for nitrogen gas at a temperature of 35.000C. 2)A perfect gas sample contains 6.2 x 1022 molecules per cubic meter at 205 K. Calculate the pressure of this gas and express the answer in units of Pascals, bar, atm, and mmHg. 3)A flask containing oxygen has a volume of 3.5 dm at a pressure of 3.5 bar. Another flask with a volume of 5.0 dm contains neon at a pressure of 5.0 bar....