Agas occupies a volume of 180 ml at 35.5°c and 53.9 kpa. what is the volume of gas at stp in ml?

Volume of the gas under STP is 84.7 mL.

Assumption: the gas is ideal.

Explanation:

How many moles of particles in this gas?

Convert all units to SI units before applying the ideal gas law.

The ideal gas constant: .

The ideal gas law:

Rearrange the ideal gas law to find the number of moles of particles in this gas:

.

The volume of one mole of an ideal gas under STP is 22.4 liters. The volume of of gas will be:

.

All three values in the question come with three significant figures. Keep more significant figures than that in calculations and round the final answer to three significant figures. Hence the 84.7 mL.

first let us lay out the formula for potential

and kinetic energy:

pe = mgh

ke = (mv^2)/2

where: m=mass, v=velocity, g=gravitational

acceleration, h=height

calculating for mass using the known values of

pe:

340j = m (9.81 m/s^2) (50ft) (1m/3.28ft)

m = 2.27 kg

the law of conservation of energy states that

energy is neither created nor destroyed. therefore, the change in kinetic

energy from 50 ft to 35 ft would be equal to the change in potential energy

from 50 ft to 35 ft. however it would be opposite in signs since one is losing

while other is gaining.

ke(35ft) – ke(50ft) = - [ pe(35ft) – pe(50ft]

ke(50ft) = 0 since the brick is initially at rest

ke(35ft) = 340j - 2.27kg (9.81 m/s^2) (35ft)

(1m/3.28 ft)

ke(35ft)

= 102.38 j