Question

Calculate the volume of 2g of CO2 gas at 23degree Celsius and 710 mm pressure

Answer 1

Answer: Use PV= nrt where pressure is equal to 7 10 / 760 atm, volume we have to calculate temperature is given to be 300 Kelvin, You can take R is equal to 0.0821 and the number of moles is equal to 2 divided by 44 and You will get volume as approximately equal to 1.2 litres.

Thank you

Explanation:

Answer 2

Given

1. 2g of CO2 gas.
2. Temperature = 23° C
3. Pressure = 710 mm

To find

1. Volume occupied.

Solution

Now we know that -

→ 760 mm Hg = 1 atm

• Pressure = 710 mm

→ P = 710/760 atm

→ P = 0.934 atm

Now number of moles of CO2 :

We know, molar mass of CO2 = 44 g

→ n = 2 × (1 mol/44g)

→ n = 0.045 moles

We will take R = 0.0821 atmL/mol K

Now temperature :-

We have convert celsius into Kelvin :

→ T = (23 + 273) k

→ T = 296 k

Now using Ideal Gas law :-

→ PV = nRT

→ 0.934 × V = 0.045 × 0.0821 × 296

→ 0.934V = 1.094

→ V = 1.094/0.934

→ V = 1.17 l

Hence volume occupied = 1.17 litres.