Boyles law
A sample of gas has a volume of 2.5 L at 1.2 atm. What will be the new volume if the pressure increases to 3.6 atm, while the temperature remains constant?
V₂ = 0.83 L
A gas is initially at 300 K with a volume of 1.5 L. If the temperature increases to 450 K, what will the new volume be? Assume pressure remains constant.
V₂ = 2.25 L
A gas sample at 2.5 atm and 350 K has a volume of 1.2 L. If the pressure changes to 1.8 atm and the temperature drops to 280 K, what is the new volume?
V₂ = 1.07 L
A party balloon is filled with 2.0 liters of helium gas at a room temperature of 25 °C (298 K). The balloon is then taken outside on a cold winter day where the temperature is -5 °C (268 K). Assuming the pressure stays constant, what is the new volume of the balloon?
1.80 liters
What is celebrated in March? (not march madness or st patrick's day)
Women's History month
A syringe contains 50.0 mL of gas at 98.7 kPa. What will be the new volume if the pressure is reduced to 65.2 kPa, assuming constant temperature?
V₂ = 75.7 mL
A balloon has a volume of 4.0 L at 27°C. If the temperature drops to -23°C, what is the new volume? Assume constant pressure.
V₂ = 3.33 L
A gas occupies 6.0 L at 300 K and 1.2 atm. What is the new volume if the pressure is increased to 1.8 atm and the temperature rises to 360 K?
V₂ = 4.8 L
A scuba tank originally contains 12.0 L of air at a pressure of 200 atm and a temperature of 30 °C. The diver descends underwater, and the pressure increases to 300 atm due to the increased water pressure. Assuming the temperature remains constant, what is the new volume of the air in the tank?
8.0 liters
In 1953, Dr. Rosalind Franklin played a crucial role in discovering the structure of DNA through her work with X-ray crystallography. However, her contributions were largely unrecognized during her lifetime. Which of the following best describes the significance of her work?
A) She developed the first-ever model of DNA, winning the Nobel Prize.
B) Her research provided the critical X-ray diffraction images that helped Watson and Crick determine DNA's double-helix structure.
C) She was the first woman to discover a new element, contributing to the periodic table.
D) Her work focused solely on genetic mutations and had no connection to the structure of DNA.
B)
A sample of gas occupies 5.5 L at 2.8 atm pressure. If the volume is reduced to 3.2 L, what is the new pressure? Assume temperature is constant.
P₂ = 4.81 atm
A balloon contains 3.0 L of gas at STP (273 K and 1.00 atm). If the balloon is heated to 350 K while the pressure remains constant, what is its new volume?
V₂ = 3.85 L
A gas at 1.5 atm and 320 K occupies a volume of 2.5 L. If the temperature increases to 400 K and the pressure remains the same, what is the new volume?
V₂ = 3.13 L
A sealed syringe initially contains 10.0 mL of air at a pressure of 1.0 atm. The plunger is pushed, decreasing the volume of the air to 5.0 mL. If the temperature remains constant, what is the final pressure of the air?
2.0 atm
Shirley Chisholm made history in 1968 by becoming the first Black woman elected to the U.S. Congress. In 1972, she achieved another groundbreaking milestone. What was it?
A) She became the first woman to serve as Speaker of the House.
B) She was the first woman and first African American to run for President in a major political party.
C) She became the first female Vice President of the United States.
D) She was appointed as the first woman to the U.S. Supreme Court.
B)
A gas at 4.0 atm occupies a volume of 1.8 L. What will be its volume if the pressure decreases to 1.2 atm, assuming temperature remains unchanged?
V₂ = 6.0 L
A gas has a volume of 2.0 L at 273 K. If the temperature is increased to 546 K, what will the new volume be? Assume constant pressure.
V₂ = 4.0 L
A container holds 8.0 L of gas at 1.0 atm and 298 K. If the pressure changes to 2.5 atm and the temperature increases to 400 K, what is the final volume?
V₂ = 4.3 L
A 5.0 L container of gas is at a pressure of 2.0 atm and a temperature of 300 K. The gas is compressed to a volume of 2.0 L, and the temperature is increased to 400 K. What is the final pressure of the gas?
6.67 atm
When is international Women's day?
March 8th