Question 296: Thermodynamics & KTG

Question

A mixture of hydrogen and oxygen has volume 500 cm
3
, temperature 300 K, pressure 400 kPa and mass 0.76 g. The ratio of masses of oxygen to hydrogen will be :-

Accepted Answer

PV = nRT
400 $$	imes$$ 10
3
$$	imes$$ 500 $$	imes$$ 10
$$-$$6
= n$$\left( {{{25} \over 3}} ight)$$ (300)
n = $${{2 \over {25}}}$$
n = n
1
+ n
2
$${{2 \over {25}}}$$ = $${{{M_1}} \over 2} + {{{M_2}} \over {32}}$$
Also, M
1
+ M
2
= 0.76 gm
$${{{M_2}} \over {{M_1}}} = {{16} \over 3}$$

Answer

3 : 8

Answer

3 : 16

Answer

16 : 3

Answer

8 : 3

Thermodynamics & KTG

A mixture of hydrogen and oxygen has volume 500 cm 3 , temperature 300 K, pressure 400 kPa and mass 0.76 g. The ratio of masses of oxygen to hydrogen will be :-

Choose the correct answer: