Gce Model Questions Vol1 2021 Chemistry Question 19

Practice objective / multiple choice question 19 from the 2021 Gce Model Questions Vol1 Chemistry examination.

Gce Model Questions Vol1 2021 Chemistry Objective / Multiple Choice Medium Difficulty
Question 19 GCE_MODEL_QUESTIONS_VOL1 • 2021 • CHEMISTRY • objective

A rigid, sealed container of volume 2.00 L initially contains 100 g of liquid water at 20 °C. The container is then heated to 120 °C. The vapor pressure of water at 120 °C is 1.99 atm. (a) Assuming the water vapour behaves as an ideal gas and the container can withstand a maximum pressure of 1.5 atm, determine the pressure inside the container after heating. (b) Calculate the mass of water that has vaporised at this temperature. (c) State whether any liquid water remains in the container.

Answer Options

A. Pressure = 1.2 atm; mass vaporised = 2.10 g; liquid water remains
Correct Answer B. Pressure = 1.5 atm; mass vaporised = 1.68 g; liquid water remains
C. Pressure = 1.5 atm; mass vaporised = 1.68 g; no liquid water remains
D. Pressure = 1.5 atm; mass vaporised = 0.95 g; liquid water remains
Correct Answer
B
Correct Option:
Pressure = 1.5 atm; mass vaporised = 1.68 g; liquid water remains

About This Question

This is Gce Model Questions Vol1 2021 Chemistry Question 19. It is one of the objective questions from the 2021 Gce Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

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