Gas Pressure
Gas pressure is a fundamental concept in physics and chemistry, representing the force exerted by a gas per unit area. It is a result of the constant, random motion of gas molecules, colliding with the walls of their container. The pressure of a gas can be affected by factors such as temperature, volume, and the number of gas molecules present. Understanding gas pressure is crucial in various applications, from weather forecasting to the design of pressurized containers. This concept plays a significant role in the study of gases and their behavior under different conditions.
Questions
- What is the total gas pressure in a sealed flask that contains oxygen at a partial pressure of 0.41 atm and a water vapor at a partial pressure of 0.58 atm?
- The volume of a fixed amount of gas is doubled, and the absolute temperature is doubled. According to the ideal gas law, how has the pressure of the gas changed?
- A gas occupies 5 L at20 °C and 1 atm. What is its volume at 2 atm and 27 °C?
- Given a volume of gas at specified temperature and pressure, how does volume evolved if BOTH pressure and temperature are DOUBLED?
- What creates gas pressure in a container such as a helium balloon?
- A 153.5 mL volume of gas is measured at 71.1#"^o#C. If the pressure remains unchanged, what is the volume of the gas at standard temperature?
- A sample of a gas has a volume of of 2.0 liters at a pressure of 1.0 atmosphere. When the volume increases to 40 liters, at constant temperature, what will the pressure be?
- How does the kinetic-molecular theory explain the pressure exerted by gases?
- How many grams of fluorine gas will exert a pressure of 134 atm in a 3.2-liter container at 40°C?
- If the volume of gas is reduced to half the the pressure will be??
- In a reaction (at equilibrium) that makes more moles of gas than it consumes, what is the effect of increasing the pressure?
- The gases in a hair spray can are at a temperature of 27 C and a pressure of 30 kPa. If the gases in the can reach a pressure 90 kPa, the can will explode. To what temperature must the gases be raised in order for the can to explode?
- What is STP in chemistry?
- Magnesium metal (0.100 mol) and a volume of aqueous hydrochloric acid that contains 0.500 mol of HCl are combined and react to completion. How many liters of hydrogen gas, measured at STP, can be produced? #"Mg"(s) + 2"HCl"(aq) -> "MgCl"_2(aq) + "H"_2(g)#
- The volume of a sample of gas, initially at 35 deg C and 58 mL increases to 450 mL. What is the final temperature of the sample of gas if the pressure in the container is kept constant?
- A rigid sealed #"3.70 L"# vessel contains #"0.12 mol"# of #He(g)# and #"0.24 mol"# #Ne(g)# at #25^@ "C"#. What is the total pressure in the vessel?
- 20.0 g each of helium and an unknown diatomic gas are combined in a 1500. ml container. lf the temperature is 298 K, and the pressure inside is 86.11 atm, what is the unknown gas?
- What is the total pressure of a container that has #NH_3(g)# exerting a pressure of 34 torr, #N_2(g)# exerting a pressure of 225 torr, and #H_2O(g)# exerting a pressure of 55 torr?
- How does gas exerts pressure on its container?
- How do you solve gas laws problems with the given "at STP" and with mass?