A flask with a volume of 1.50 L, provided with a stopcock,contains ethane gas (C2H6) at 300 K and atmospheric pressure(1.013 * 10^5 Pa). The molar mass of ethane is 30.1 g/mol. Thesystem is warmed to a temperature of 550 K, with the stopcockopen to the atmosphere. The stopcock is then closed, and the flaskis cooled to its original temperature. (a) What is the final pressureof the ethane in the flask? (b) How many grams of ethane remainin the flask?

A flask with a volume of 1.50 L, provided with a stopcock,contains ethane gas (C2H6) at 300 K and atmospheric pressure(1.013 * 10^5 Pa). The molar mass of ethane is 30.1 g/mol. Thesystem is warmed to a temperature of 550 K, with the stopcockopen to the atmosphere. The stopcock is then closed, and the flaskis cooled to its original temperature. (a) What is the final pressureof the ethane in the flask? (b) How many grams of ethane remainin the flask?

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Question

A flask with a volume of 1.50 L, provided with a stopcock,
contains ethane gas (C2H6) at 300 K and atmospheric pressure
(1.013 * 10^5 Pa). The molar mass of ethane is 30.1 g/mol. The
system is warmed to a temperature of 550 K, with the stopcock
open to the atmosphere. The stopcock is then closed, and the flask
is cooled to its original temperature. (a) What is the final pressure
of the ethane in the flask? (b) How many grams of ethane remain
in the flask?

Expert Solution