What is the most abundant gas in the atmosphere is argon oxygen nitrogen hydrogen

Hey there princesswalkeror4ori,

By far, the most abundant gas in the Earth's atmosphere is nitrogen, which accounts for about 78% of the mass of dry air. Oxygen is the next most abundant gas, present at levels of 20 to 21%. Although humid air seems like it contains a lot of water, the maximum amount of water vapor that air can hold is only about 4%.

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—129°C

Explanation:

First, we analyze what was given from the question as follows:

V1 = 2.50L

T1 = 15°C = 15 +273 = 288K

V2 = 1.25L

T2 =?

V1 / T1 = V2 /T2

2.5/288 = 1.25/T2

Cross multiply to express in linear form

2.5 x T2 = 288 x 1.25

Divide both side by the coefficient of T2 i.e 2.5

T2 = (288 x 1.25) / 2.5

T2 = 144K

Converting this temperature(144K) to degree Celsius, we have

T°C = K — 273

T°C = 144 — 273

T°C = —129°C