An ideal gas sample is confined to 3.0 L and kept at 27°C. If the temperature is raised to 77°C and the initial pressure was 1500 mmHg, what is the final pressure?

1 Answer
Sam
Jun 8, 2016

#P= 1750 \ mmHg #

Explanation:

Use the combined gas law equation:

#(P_1xxV_1)/T_1=(P_2xxV_2)/T_2#

The gas is confined in 3.0 L container ( rigid container) #=># the volume remains constant when the temperature is increased from from #27^oC# to #77^oC# and therefore #\ V_1= V_2#.

#(P_1xxcancel(V_1))/T_1=(P_2xxcancel(V_2))/T_2#

#(P_2)/T_2=P_1/ T_1#

#P_2= P_1 xxT_2/T_1#

#P_2= 1500 \ mmHg xx( 350 \ K)/(300 \ K)#

#P_2= 1750 \ mmHg #

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