The gas occupied a volume of 250 ml and a pressure of 76kPa at 298K.
Apply the combined gas law equation
P₁ V₁/T₁=P₂V₂/T₂
Put the given values in the equation
38×500/298=76×250/T₂
Hence, the temperature at 250ml and 76kPa will be 298K.
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