Asked by Sarah davidson on May 18, 2024
Verified
What is the pressure when a 3.0 L tank of gas containing 2.5 moles of the gas is kept at 25°C?
A) 20.4 atm
B) 61.1 atm
C) 1.71 atm
D) Not enough information to tell
Atm
Standard atmosphere; a unit of pressure defined as 101,325 Pa and used as a reference for atmospheric pressure.
Moles
A unit of measure in chemistry representing 6.02214076 × 10^23 particles of a substance, used to express amounts of a chemical substance.
Temperature
A measure of the average kinetic energy of the particles in a sample, influencing physical states, chemical reactions, and biological processes.
- Illustrate the connection among temperature, pressure, volume, and mole count in gases as dictated by the ideal gas law.
Verified Answer
SS
Shikha SinghMay 25, 2024
Final Answer :
A
Explanation :
The pressure can be calculated using the ideal gas law, PV = nRT, where P is pressure, V is volume, n is the number of moles, R is the ideal gas constant (0.0821 L·atm/(mol·K)), and T is temperature in Kelvin. Converting 25°C to Kelvin gives 298K. Plugging in the values: P = (2.5 moles * 0.0821 L·atm/(mol·K) * 298K) / 3.0 L = 20.4 atm.
Learning Objectives
- Illustrate the connection among temperature, pressure, volume, and mole count in gases as dictated by the ideal gas law.