*note- heat is added without an increase in temperature during phase changes
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Draw a sketch of a phase diagram. Using arrows, indicate where the 6 different phase changes are occurring. *Note- heat is added without an increase in temperature during phase changes. GAS LAWS. Boyle’s Law. - PowerPoint PPT PresentationTRANSCRIPT
Draw a sketch of a phase diagram. Using arrows, indicate where the 6 different phase changes are occurring.
*Note- heat is added without an increase in temperature during phase changes
•GAS LAWS
Boyle’s Law
• Volume of a given amount of gas held at a constant temperature varies inversely with the pressure
P1V1=P2V2
Boyle’s Law
Boyle’s Law
• A balloon with a volume of 2.0 L is filled with a gas at 3 atmospheres. If the pressure is reduced to 0.5 atmospheres without a change in temperature, what would be the volume of the balloon?
• The volume of the balloon will expand to 12 L.
Charles’s Law
• The volume of a given mass of gas is directly proportional to its kelvin temperature at constant pressure
Charles’s Law
Charles’s Law
• A gas sample at 40.0 degres C occupies a volume of 2.32 L. If the temperature is raised to 75.0 degrees C, what will be the resulting volume, assuming the pressure remains constant?
• 2.58 L
Gay-Lussac’s Law
• The pressure of a given mass of gas varies directly with the kelvin temperature when the volume remains constant
Gay-Lussac’s Law
Gay-Lussac’s Law
• The pressure of a gas in a tank is 3.20 atm at 22.0 degrees C. If the temperature rises 60.0 degress C, what will be the gas pressure in the tank?
• 3.61 atm
A balloon is filled with 35.0 L of helium in the morning when the temperature is 20.0 C. By noon the temperature has risen to 45. °C. What is the new volume of the balloon?
• A sample of nitrogen gas has a volume of 478 cm3 and a pressure of 104.1 kPa. What volume would the gas occupy at 88.2 kPa if the temperature remains constant?