Answer:
The new volume of the gas is 70 mL (option A)
Explanation:
Step 1: Data given
Volume of the gas = 93 mL = 0.093 L
Temperature = 91 °C = 364 K
The temperature is reduced to 0°C = 273 K
The pressure doesn't change
Step 2: Calculate the new volume of the gas
V1/T1 = V2/T2
⇒with V1 = the initial volume of the gas = 0.093 L
⇒with T1 = the initial temperature of the gas = 364 K
⇒with V2 = the new volume = TO BE DETERMINED
⇒with T2 = the reduced temperature = 273 K
0.093L/364K = V2/273 K
V2 = 0.06975 L = 69.75 mL ≈ 70 mL
The new volume of the gas is 70 mL (option A)
