Chemistry States of Matter

Convert 15*C into kelvin

• 288K
• 258K
• -258K
• 18.2K

Convert 255K to *C

• -18*C
• 18*C
• 528*C
• 0.93*C

If 22.5L of nitrogen at 0.98 atm is compressed to 0.95 atm, what is the new volume?

• 23.2L
• 21.8L
• 24.2L
• 20.6L

If 6L of gas at 293K is compressed to 4L, what is the new temperature? 

• 195K
• 439.5K
• 0.082K
• 12.2K

If 15L of neon at 300K and 3 atm is allowed to heat to 350K, what is the new pressure, assuming volume stays constant?

• 3.5 atm
• 2.6 atm
• 16.7 atm
• 0.86 atm

If 10L of O₂ at 273K and 1 atm is compressed to a 7L container at 250K, what is the new pressure?

• 1.31 atm
• 9.16 atm
• 0.76 atm
• 6.0 atm

A weather balloon has a volume of 105L at 0.97 atm when the temperature is 318K. What is the volume at 293K and 1.05 atm?

• 89.4 L
• 0.32 L
• 93.8 L
• 3.13 L

If the pressure exerted by a gas at 25 degrees C in a volume of 0.044 L is 3.81 atm, how many moles of gas are present?

• .002766 mole
• .0069 mol
• 2.766 mol
• 9.887 mol

Calculate the volume that a 0.323-mol sample of a gas will occupy at 265 K and a pressure of 0.900 atm.

• 7.18 L 
• 7.81 L
• 4.63 L
• 4.36 L

Determine the Kelvin temperature required for 0.0470 mol of gas to fill a balloon to 1.20 L under .998 atm pressure. 

• 0 K 
• 107 K 
• 207 K 
• 307 K