Question

A sample of 240.0 K and 670 mm Hg occupies a 128 mL volume bottle. What volume will the gas occupy at -75 degrees celsius (If the pressure remains constant)?

Answer 1

New volume = 105.6 mL

Step-by-step explanation:

Given that,

Temperature, T = 240.0 K

Pressure, P = 670 mm Hg

Volume, V = 128 mL

New temperature = -75°C = 198 K

We need to find the new volume. Let it is V'. The relation between volume and the temperature is given by :

`V=kT\\\\(V)/(V')=(T)/(T')\\\\V'=(VT')/(T)\\\\V'=(128* 198)/(240)\\\\V'=105.6\ mL`

So, the new volume is equal to 105.6 mL.