The composition of planetary atmospheres is determined in part by the speeds of the molecules of the constituent gases because the faster-moving molecules can reach escape velocity and leave the planet. Calculate the mean speed of CH4 molecules at 77K and 1500K.

At T = 77k, V = 2.69m/a

At T = 1500K, V = 11.86m/s

Explanation:

Hello,

We're required to find the root mean speed (RMS) of a gas and to do that, we'll have to relate the energy of a gas and its kinetic energy

Ek = 3/2 RT

Ek = ½mv²

½mv² = 3/2 RT

Solve for V

MV² = 3RT

V² = 3RT / M

V = √(3RT/M)

V = velocity or speed of the gas

R = ideal gas constant

T = temperature of the gas

M = molarmass mass of the gas

Molar mass of CH4 = 12 + 4 = 16g/mol

At T = 77k

V = √[((3/2) × 77) / 16]

V = √7.216

V = 2.69m/s

At T = 1500K

V = √[((3/2) × 1500) / 16]

V = √140.625

V = 11.86m/s

because natural gas is colorless, odorless, and tasteless, distributors add mercaptan (a chemical that smells like sulfur) to give natural gas a distinct unpleasant odor (it smells like rotten eggs). they locate the types of rock that are likely to contain natural gas deposits.

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).