A balloon is inflated with 0.2494 g of helium to a pressure of 1.26 atm. If the desired volume of the balloon is 1.250 L, what must the temperature be in °C?

1 Answer
anor277
Jun 4, 2016

Approx. #305-310*K#

Explanation:

We use the Ideal Gas equation and solve for #"Temperature"#:

#T=(PV)/(nR)# #=#

#(1.26*atmxx1.250*L)/((0.2494*g)/(4.003*g*mol^-1)xx0.0821*L*atm*K^-1*mol^-1)# #=# #??K#

We get an answer in #"Kelvin"#. We must convert this to #"Centigrade"#.

#"Centigrade Temperature"# #=# #("Kelvin Temperature"-"273.15")""^@C#

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