Pressure, Volume and Temperature Problems, problems, problems

Make a group graph that compares your data, to that which was calculated.

Temperature in Kelvin Volume in LitersVolume in Liters

Remember the BIG equation. P 1 V 1 P 2 V = T 1 T 2

Boyles ’ s Law FormulaP 1 V 1 = P 2 V 2 You have a tire with a volume of 1 liter. It has a pressure of 101 kPa (which is what ordinary atmosphere is). You reduce the volume by one half. What is the new pressure?

Boyles ’ s Law FormulaP 1 V 1 = P 2 V 2 You have a tire with a volume of 1 liter. It has a pressure of 101 k Pa (which is what ordinary atmosphere is). You reduce the volume by one half. What is the new pressure? 101 kPa 1 liter = P 2.5 liter a.Divide both sides by.5 liter b.Answer is 202 kPa

You have a set of lungs that have a volume of 1.5 liters. You dive down, and have a new volume of.5 liters. What is the pressure on your body due to water?

P 1 – 101 k Pa V 1 – 1.5 liters101 kPa 1.5 liters = P 2.5 liters P 2 -- unknown V liters Divide both sides by.5 liters, answer is 303 kPa

You have a balloon, and it has a volume of 2.5 liters and a pressure of 101 kPa. You release it, and it rises until the air pressure is 50 kPa. What is the new volume of the balloon? Assume the helium in the balloon is free to expand.

P 1 – 101 kPa V 1 – 2.5 liters P 2 – 50 kPa V 2 – unknown 101 kPa 2.5 liters = 50 kPa V 2 Divide both sides by 50 k Pa, answer is 5.05 liters.

You have a container that has been squeezed to a volume of 3.25 liters, and a pressure of 450 kPa. What was the pressure of the container when the container had a volume of 10 liters?

P 1 – unknown kPa V 1 – 10 litersP1 10 liters = 450 kPa 3.25 liters P 2 – 450 kPa V 2 – 3.25 liters divide both sides by 10 liters, answer is kPa

Charles ’ s Law Formula V1/T1 = V2/T2 Kelvin Temperature Scale -- add 273˚ to the Centigrade scale. You MUST use Kelvin scale with this formula You have a tire with a volume of 1 liter. It has a temperature of 25˚C (which is what room temperature is). You reduce the volume (by chilling) by one half, to.5 liter. What is the new temperature? Remember to change to Kelvin, not centigrade.

Charles ’ s Law Formula V1/T1 = V2/T2 Kelvin Temperature Scale -- add 273˚ to the Centigrade scale. You MUST use Kelvin scale with this formula You have a tire with a volume of 1 liter. It has a temperature of 25˚C (which is what room temperature is). You reduce the volume (by chilling) by one half, to.5 liter. What is the new temperature? Remember to change to Kelvin, not centigrade. V 1 – 1 liter T 1 – 298 degrees Kelvin V liters T 2 – unknown degrees Kelvin (1 liter ÷ 298 K) = (.5 liters ÷ T 2 ) Cross multiply and divide, answer is 149 K

You have a balloon, with a temperature of 25˚C, and a volume of.75 liters. You chill it to a volume of.5 liters. Pressure remains the same. What is its new temperature?

V 1 –.75 liters T 1 – 298 degrees Kelvin V liters T 2 – unknown degrees Kelvin (.75 liter ÷ 298 K) = (.5 liter ÷ T 2 ) Cross multiply and divide, answer is 199 K

You have a container that has been chilled to a volume of 3.25 liters, and a temperature of 400˚C. What was the temperature of the container when the container had a volume of 10 liters?

V 1 – 10 liters T 1 – unknown degrees Kelvin V 2 – 3.25 liters T 2 – 673 degrees Kelvin (10 liter ÷ T 2 K) = (3.25 liter ÷ 673 K) Cross multiply and divide, answer is 2,071 K