A fixed quantity of gas at 21 ∘C exhibits a pressure of 760 torr and occupies...

Question

Question

A fixed quantity of gas at 21 ∘C exhibits a pressure of 760 torr and occupies a volume of 5.52 L.

A) Calculate the volume the gas will occupy if the pressure is increased to 1.86 atm while the temperature is held constant.

Express the answer in liters to three significant figures.

B)

Calculate the volume the gas will occupy if the temperature is increased to 185 ∘C while the pressure is held constant.

Express the answer in liters to three significant figures.

Answer 1

Answer #1

At constant temperature,

P1V1 = P2V2

P1= 760 ttorr = 1 atm

V1 = 5.52 L

P2 = 1.86 atm

V2= 1atm* 5.52 L /1.86 atm = 2.968 L = 2.97L

B) when p is constant,

V1/T1 = V2/T2

5.52L/ 294.15K = V2/458.15K

V2= 8.598L = 8.60L

Answer 2

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