A sample of hydrogen gas occupies a volume of 600ml when collected at 30.0c and a total pressure of 713 mmHg how many moles of h2 are in the sample
Answers
Answer:
A sample of hydrogen gas occupies a volume of 600ml when collected at 30.0c and a total pressure of 713 mmHg how many moles of h2
Answer:
The idea here is that the volume and the temperature of a gas have a direct relationship when the pressure and the number of moles of gas are being kept constant
→
this is known as Charles' Law.
A very important thing to remember is that the temperature of the gas must be expressed in Kelvin. In other words, you must always work with the absolute temperature of a gas.
So, start by converting the temperature of the gas to Kelvin by using
T
[
K
]
=
t
[
∘
C
]
+
273.15
−−−−−−−−−−−−−−−−−−−−
You will have
T
=
166
∘
C
+
273.15
=
439.15 K
The volume of the gas will increase as temperature increases and decrease as temperature decreases. Mathematically, this can be written as
V
1
T
1
=
V
2
T
2
−−−−−−−−−
Here