Which is the correct version of the ideal gas law?

• PV=nRT

• Pn=VRT

• PT=nRT

• VP=nVT

If I have an unknown quantity of gas at a pressure of 0.5 atm, a volume of 25 liters, and a temperature of 300 K, how many moles of gas do I have?

• 0.5 moles

• 1 mole

• 1.5 moles

• 0.25 moles

What is 25 degrees Celsius in Kelvin?

• 298 K

• 248 K

• 6825 K

• 273 K

Pressure and volume have a(n) ​ (a)   relationship. Pressure and Temperature have a(n) ​ (b)   relationship.

• inverse
• direct
• exponential
• logarithmic
• increasing
• decreasing

As pressure increases, volume _________. Assume all other variables are kept constant.

• increases

• decreases

• stays constant

• rises