The molecular mass of helium is 4 g/mol, the boltzmann’s constant is 1.38066 × 10−23 j/k, the universal gas constant is 8.31451 j/k · mol, and avogadro’s number is 6.02214 × 1023 1/mol. given: 1 atm = 101300 pa.

1.how many atoms of helium gas are required to fill a balloon to diameter 36 cm at 49◦c and 0.902 atm?
2. what is the average kinetic energy of each helium atom? answer in units of j.3. what is the rms speed of each helium atom? answer in units of m/s.

1.) N = 1.69×10²³ atoms

2.) K = 6.88×10⁻²¹ J

3.) v = 1.44×10³ m/s

Explanation:

1)  Using the molecular formula pV = nRT , where P=  pressure, V= volume, n= number of atom, R= Avogaro's constant and K = temperature in Kelvin

(0.934 atm)(101300 Pa/atm)(4π/3)(0.25 m / 2)³ = (N / 6.02214×10²³ mol^-1)(8.31451 J/mol-K)(59 + 273.15K)

N = 1.69 ×10²³ atoms

2)

K = (3/2)(kB)(T)

K = (3/2)(1.38066e-23 J/K)(59 + 273.15K)

K = 6.88×10⁻²¹ J

3)

K = (1/2)mv²

6.88×10⁻²¹ J = (1/2)(4 g/mol)(mol / 6.02214ײ³)(kg / 1000 g)v²

v = 1.44×10³ m/s

the independent variable, the one that is intentionally manipulated, is whether or not the car hits the barrier.

the dependent variable, the one that you measure the response in, is the distance that the washers travel.

answer

procedural programming, object-oriented programming

explanation

procedural programming is a type of computer programming language that specifies a series of well structured steps and procedures   within its development period of time. it contains a systematic order of statements, functions and commands to complete a computational task or program. it is centered on creating procedures. while object oriented programming is a programming language that is centered on creating objects rather that actions and data rather than logic.. it has four principles which are inheritance, polymorphism, abstraction and encapsulation