physics....properties of matter....ASAP.pls
posted by adewuyi .
Helium gas occupies a volume of 0.04m^3 at a pressure of 2*10^5 N/m^2 and a temperature of 300K,calculate:
1.) the mass of helium
2.)the root mean square speed of its molecule
3.)the root mean square speed at 432K when the gas is heated at constant pressure to this temperature
Respond to this Question
Similar Questions

chemistry
Is average speed (u) the same as root mean square velocity? 
12th grade physics
Helium is monatomic with a relative atomic mass of 4. calculate (i) the density of helium gas at a temperature of 0 degrees Celsius and a pressure of 101kPa and (ii) the rms speed of the helium atoms under these conditions 
chemistry
The root mean square speed of CH4 at 160 K is 5.0x102 m/s. At what temperature will the root mean square speed of C2H6 be the same? 
physics
a) What is the rootmeansquare speed for a collection of helium4 atoms at 311 K? 
physics
A portable steel tank with a volume 35 liters (0.035m³) holds helium gas used for filling party balloons. The pressure in the tank is 120atm when at room temperature of 22 °C. How many moles of helium gas are in the tank? 
Chemistry Help
The molecules of a certain gas sample at 367 K have a rootmeansquare (rms) speed of 261 m/s. Calculate the most probable speed and the mass of a molecule. 
Math PLEASE HELP ASAP
PLEASE INCLUDE SOLUTIONS AND EXPLAIN HOW YOU DID IT PLEASE. *CHALLENGE. 1.SIMPLIFY : SQUARE ROOT OF 16^8+8^4/16^2+16^7 2.EXPRESS 1 + 1/1+SQUARE ROOT OF 2  1/1SQUARE ROOT OF 2 IN THE FORM A+B SQUARE ROOT OF 2, WHERE A AND BARE RATIONAL … 
physics 101
At what temperature is the root mean square speed of oxygen molecules equal to the root mean square speed of hydrogen at 27 degrees? 
Physics
Temperature of a diatomic gas is 300k. If the moment of inertia of its molecules is 8.28*10^38 gmcm^2. Calculate their root mean square angular velocity. 
physics
Helium gas occupies a volume of 0.04 m 3 at a pressure of 2 x 10 5 Pa (Nm 2 ) and temperature of 300 K. Calculate (i) the mass of the helium. (ii) the r.m.s. speed of its molecules. (iii) the r.m.s. speed at 432 K when the gas is …