How many electrons are in helium

you have 25 L cylinder of helium at a pressure of 135 atm and a temperature of 23 degrees celcius....

A piston contains 1m^3 of helium at a temperature of 250 K and an absolute pressure of 1.0kPa. The f...

A sample of Nitrogen(N2)& Helium has a volume of 250mL @ 30degrees celsius & a total pressure of 745...

the volume of a sample of helium is 4.5ml at 20.0c and 203.0kpa. what will its volume be in the figu...

How big would a spherical helium balloon have to be to lift a 70kg person? The mass of the balloon's...

A 6.00 L balloon contains helium at SATP at ground level. What is the volume when it floats up to an...

Are the boiling points of helium and sulphur dioxide the same?

A clown uses canisters of helium to make balloons. The graph shows the number of canisters used and...

A 6.77 L balloon contains helium at SATP at ground level. Predict the balloon’s temperature (in Kelv...

If the average speed of a helium atom at a certain temperature is 1210. m/s , what is the speed in m...

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