Heat Capacity Related Problems

Hello! I am Vidhi Shah M.Tech NIT Tiruchirappalli You can find me at: unac unacademy.com/user/vidhi94

Heat Capacity Related Problems

O The properties of a certain fluid are given as U 196+0.718t PV- 0.287 (t+273) U is specific internal energy P is pressure T is in degrees celcius V is specific volume What will be value of Cv and Cp?

176 + 18t Cp- 1 oo5 kJ

O APressuresf mass 1.5 kg undergoes a quasi static expansion which Follows the given relationship where a and b are constants. The initial and final Pressure are 1000kPa and 200kpa and corresponding volumes are 0.2 m3 and 1.3 m3. Specific internal energy of the gas is U 1.5pv -85 kJ/kg Where p is in kPa, v in m3/kg Calculate the net heat transfer and maximuminternal energy of the gas during expansion

200= a +1.2b 2. -2 2.

m2/k 0-2-8

n e Max inteml eners 1 -S 1 160-2 x 800 V =

ui mex 15C .725)o 725-85 ma x=l-S! ( 1160-800 116o -

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Vidhi Shah

I am an M.Tech student of NIT TRICHY. I have done B.Tech in Chemical Engineering.GATE 2018 rank 704.

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Anupriya g thayil

a year ago

Excellent classes . Thank you sir.

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Harshit Yadav

a year ago

I think your final answer for U_max is wrong. Mine is coming out to be 545.75KJ. Can you please verify?

1

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Vidhi Shah

a year ago

I am getting 503 again .

Harshit Yadav

a year ago

1.5 will not be multiplied with 85. I think that is why our answers are different.

Vidhi Shah

a year ago

the formula is also correct

Harshit Yadav

a year ago

okay mam. I will check my answer.

Aalan Britto

a year ago

Is the T you mentioned is Temperature right?

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Vidhi Shah

a year ago

yes

PD

Prashant Dubey

6 days ago

In 8th slide, last line, why do you multiply by 1.5 with delta U?

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PD

Prashant Dubey

6 days ago

Due to mass?