Question

if 1 gram of each of the following gases are taken at STP which of the gases will occupy (a) greatest volume (b) smallest volume ?​

Answer 1

If 1 gram of each of the following gases are taken at STP, which of the gases will occupy

(i) greatest volume

(ii) smallest volume

CO, H2O, CH4, NO

Report by Berlinhunter5000 24.01.2018

Answers

yuhaniyusuf786

Yuhaniyusuf786 Ambitious

CH4 has highest volume and NO has smallest volume.

Click to let others know, how helpful is it

2.0

3 votes

Report

Kobenhavn Ambitious

Answer: The gas which will occupy (i) greatest volume is CH_4and (ii) smallest volume is NO.

Explanation: Avogadro's law law states that volume is directly proportional to the number of moles of the gas at constant pressure and temperature.

V\propto n (At constant temperature and pressure)

Thus gas containing the maximum moles will occupy maximum volume and gas with minimum moles will occupy minimum volume.

Moles=\frac{\text{Given mass}}{\text{Molar mass}}

{\text {Moles of}} CO=\frac{1g}{28g/mol}=0.036moles

{\text {Moles of}} H_2O=\frac{1g}{18g/mol}=0.055moles

{\text {Moles of}} CH_4=\frac{1g}{16g/mol}=0.062moles

{\text {Moles of}} NO=\frac{1g}{30g/mol}=0.033moles

Answer 2

$\huge\bf{\red{\mid{\overline{\underline{your\: answer}}}\mid}}$

★ molar volume of gas,

volume of 1 mole of gas = 22.7L at STP

1MOLE of COURSE = 28 g

28 g of COURSE have volume = 22.7L at STP

=> 1g of CO will have volume =

$\frac{22.7}{18} l \: at \: stp$

1g of h2o =

$\frac{22.7}{18} l$

1g of CH4 =

$\frac{22.7}{16} l$

1g of NO =

$\frac{22.7}{30} l$

thus, 1g of CH4 will occupy max. volume and 1g of NO will occupy minimum volume.

__________________________________________