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A sample of gas occupies 17 mL at -122°C. What volume does the sample occupy at 70°C?

A. 10.6 mL
B. 27 mL
C. 36 mL
D. 8.0 mL

User Micker
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1 Answer

3 votes

Answer: 38.6 ml

Explanation:

Charles' Law: This law states that volume is directly proportional to the temperature of the gas at constant pressure and number of moles.



V\propto T (At constant pressure and number of moles)


(V_1)/(T_1)=(V_2)/(T_2)


V_1= initial volume = 17 ml


V_2= final volume = ?


T_1= initial temperature =
-122^0C=273+(-122)=151K


T_2=final temperature=
70^0C= 70+273=343K


(17)/(151)=(V_2)/(343)


V_2=38.6ml

Thus final volume is 38.6 ml at 70
^0C




User SuperSized
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