Middle School

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------------------------------------------------ What volume does 0.87 mol of [tex]$H_2O(g)$[/tex] occupy at 36.2°C and 1.25 atm?

A. 2.06 L
B. 17.6 L
C. 37.1 L
D. 317 L

Answer :

Answer:

The answer is 17.66 L of volume occupy by water

Explanation:

According to ideal gas equation, the volume is calculated

PV= nRT

where V = volume

P = Pressure =.

n = number of moles,

T = temperature

Where R = 0.08206 L atm mol-1K-1 is constant

Convert the temperature value from degree centigrade to kelvin 1 °C = 273.15 K

By putting the values in the above equation as we have to find the volume so by adjusting

V= nRT/ P n= 0.87 mol P= 1.25 atm T= 36.2 °C= 309.35 K



V= (0.87mol) x (0.08206 L atm mol-1K-1 )x (309.3 K)/ 1.25 atm

V= 22.08 L atm /1.25 atm

Volume = 17.66 L