Question

at constant temperature and pressure one litre nitrogen gas reacts with three litres of hydrogen gas to produce two litres of ammonia gas this is accordance with ..............​

Answer 1

Answer:

Here is the balanced equation

N

2

+

3

H

2

=

2

N

H

3

At STP, 1 mole has a volume of 22.4 Liters. To do a dimensional analysis conversion from Liters to moles:

N

Liters

1

1

mole

22.4

Liters

=

N

22.4

moles

Please observe that Liters and moles vary directly, therefore, we can simply multiply each of the coefficients (that represent moles) by

1.2

L

to obtain the volumes:

(

1.2

L

)

N

2

+

(

3.6

L

)

H

2

=

(

2.4

L

)

N

H

3

It does not really matter what number of moles that we have as long as we maintain the

1

:

3

:

2

relationship.