if you throw a heavy log into the fireplace, after it burns you are left with some ash. the ash has a mass much less then the ma
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Answer:
The molar heat capacity at constant volume is 21.62 JK⁻¹mol⁻¹
The molar heat capacity at constant pressure is 29.93 JK⁻¹mol⁻¹
Explanation:
We can calculate the molar heat capacity at constant pressure from
Where is the molar heat capacity at constant pressure
is the heat capacity at constant pressure
and is the number of moles
Also is given by
Hence,
becomes
From the question,
= 229.0 J
= 3.00 mol
= 2.55 K
Hence,
becomes
29.93 JK⁻¹mol⁻¹
This is the molar heat capacity at constant pressure
For, the molar heat capacity at constant volume,
From the formula
Where is the molar heat capacity at constant volume
and is the gas constant (
= 8.314 JK⁻¹mol⁻¹)
Then,
21.62 JK⁻¹mol⁻¹
This is the molar heat capacity at constant volume