wk 5 hw 5


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206190205
Posts: 83
Joined: Fri Sep 29, 2023 10:42 am

wk 5 hw 5

Postby 206190205 » Fri Mar 15, 2024 12:56 pm

The molar heat capacity for carbon monoxide at constant volume is Cv,m = 20.17 J/(K mol)
A 20.00-L fixed-volume flask contains CO(g) at a pressure of 5.00 kPa and a temperature of 25.0`C.
Assuming that carbon monoxide acts as an ideal gas and that its heat capacity is constant over the given temperature range, calculate the change in entropy for the gas when it is heated to 800.0`C.

After using the formula for the ideal gas law, I got 0.0403 mol after switching the formula around. What is the next step or next formula to use to solve the problem?

morganm
Posts: 80
Joined: Fri Sep 29, 2023 11:53 am

Re: wk 5 hw 5

Postby morganm » Fri Mar 15, 2024 1:05 pm

Use delta S (entropy) = nCv ln (T2/T1).

Aminta Chem
Posts: 85
Joined: Fri Sep 29, 2023 11:24 am

Re: wk 5 hw 5

Postby Aminta Chem » Sat Mar 16, 2024 5:53 pm

You need to find n then multiply it by your Cvm number. Otherwise you answer will be in J/Kmol


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