Answer:
When the volume reduces to 14.9 L, the number of moles decreases to 3.3 moles of gas
Explanation:
Step 1: Data given
Number of moles gas = 5.2 moles
Volume = 23.5 L
Volume reduced to 14.9 L
Step 2: Calculate the new amount of moles
V1/n1 = V2/n2
⇒with V1 = the initial volume of the gas = 23.5 L
⇒with n1 = the initial number of moles gas = 5.2 moles
⇒with V2 = the reduced volume = 14.9 L
⇒with n2 = the new amount of moles gas = TO BE DETERMINED
23.5 L/ 5.2 moles = 14.9 L / n2
n2 = 14.9 L (23.5 L / 5.2 moles)
n2 = 3.3 moles
When the volume reduces to 14.9 L, the number of moles decreases to 3.3 moles of gas
