Posted by **madison** on Wednesday, July 3, 2013 at 1:27am.

A balloon at 32 °C is filled with 21 L of air. What would its volume be at a temperature of 52 °C, assuming pressure remains constant?

- chemistry -
**Jai**, Wednesday, July 3, 2013 at 7:26am
Assuming the gas is ideal, we use Charles' Law to relate the relationship between Temperature & Volume of gas:

V1/T1 = V2/T2

where:

T1 = initial temperature of gas (in K)

T2 = final temperature of gas (in K)

V1 = initial volume of gas

V2 = final volume of gas

*note that to convert °C to K, we just add 273.

substituting,

(21)/(32 + 273) = V2/(52 + 273)

V2 = (21)*(325)/(305)

V2 = ?

now solve for V2.

hope this helps~ :)

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