New Worksheet - Chemistry - Combined Gas Law (II)

0 degrees C = 273.15 K
P1 V1 / T 1 = P2 V2 / T2
1.000 atm = 101.3 kPa
760.0 torr = 1.000 atm
760.0 mmHg = 1.000 atm

Problem 1
A balloon is filled with air so that its volume is 3.1 L at 59.0 degrees C. It is then lowered into a vat of liquid nitrogen so that it reaches a temperature of – 168.0 degrees C. Assuming that the pressure stays constant, what is the new volume?
Answer: ________________

Problem 2
A balloon is filled with air so that its volume is 2.9 L at 73.0 degrees C. It is then lowered into a vat of liquid nitrogen so that it reaches a temperature of – 159.0 degrees C. Assuming that the pressure stays constant, what is the new volume?
Answer: ________________

Problem 3
A balloon is filled with helium at a temperature of 97.0 degrees C and a pressure of 415 mmHg so that its volume is 6.15 L. It then rises to an altitude where the temperature is 11.0 degrees C and the pressure is 810 mmHg. What is its volume at that altitude?
Answer: ________________

Problem 4
A chemist collects 64.1 mL of nitrogen gas at 17 degrees C and 450 torr. What would the volume be if the temperature is changed to 554 K and the pressure is raised to 8.24 atm?
Answer: ________________

Problem 5
A chemist collects 48.6 mL of oxygen gas at 38 degrees C and 430 torr. What would the volume be if the temperature is changed to 818 K and the pressure is raised to 6.73 atm?
Answer: ________________

Problem 6
A balloon is filled with air so that its volume is 7.5 L at 43.0 degrees C. It is then lowered into a vat of liquid nitrogen so that it reaches a temperature of – 225.0 degrees C. Assuming that the pressure stays constant, what is the new volume?
Answer: ________________

Problem 7
A chemist collects 46.1 mL of nitrogen gas at 62 degrees C and 320 torr. What would the volume be if the temperature is changed to 631 K and the pressure is raised to 8.87 atm?
Answer: ________________

Problem 8
A balloon is filled with helium at a temperature of 57.6 degrees C and a pressure of 584 mmHg so that its volume is 4.33 L. It then rises to an altitude where the temperature is 57.5 degrees C and the pressure is 836 mmHg. What is its volume at that altitude?
Answer: ________________


© 2018 Laura Glassel – lizzietutoring.blogspot.com