chemistry
posted by madison .
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?

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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