A student fills a flask with 5.0 moles of nitrogen gas and then seals the flask. Which change will happen when the student warms the flask?
• The temperature of the nitrogen gas will decrease.
O The pressure inside the flask will increase.
© The volume inside the flask will decrease.
O The molar mass of the gas will increase.
The pressure inside the flask will increase.
When the student warms the flask, the temperature of the gas will increase, causing the gas molecules to move faster and exert more pressure on the walls of the flask. This increase in pressure is a result of the ideal gas law, which states that pressure is directly proportional to temperature when volume and moles of gas are held constant.