Thermodynamics

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New answer posted•a year ago

Thermodynamics Class 11th

Kindly consider the following

For the reaction,

6 Views|Posted a year ago

Asked by Alok Kumar Singh

Answered by

Alok Kumar Singh | Contributor-Level 10

a year ago

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New answer posted•a year ago

Thermodynamics Class 11th

Which of the following statement is incorrect?

3 Views|Posted a year ago

Asked by Alok Kumar Singh

Answered by

Alok Kumar Singh | Contributor-Level 10

a year ago

For spontaneous process △G < 0

For reversible process △G = 0

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New answer posted•a year ago

Thermodynamics Class 11th

A gas undergoes a cyclic process ABCA as shown. Find the work done by the gas for

17 Views|Posted a year ago

Asked by Alok Kumar Singh

Answered by

Alok Kumar Singh | Contributor-Level 10

a year ago

Work Area

->W = $\frac{1}{2}$ * 600 * 4

= 1200J

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New answer posted•a year ago

Thermodynamics Class 11th

Which among the following is not a state function?

4 Views|Posted a year ago

Asked by Alok Kumar Singh

Answered by

Alok Kumar Singh | Contributor-Level 10

a year ago

Work depends on the path followed by the system so work is path function.

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New answer posted•a year ago

Thermodynamics Class 11th

8 moles of oxygen and 4 moles of nitrogen are at same temperature T and are mixed. The total internal energy is

4 Views|Posted a year ago

Asked by Alok Kumar Singh

Answered by

Alok Kumar Singh | Contributor-Level 10

a year ago

U = nC_vT

-> $U = n_{1} C_{v_{1}} T + n_{2} C_{v_{2}} T$

-> $8 * \frac{5 R}{2} * T + 4 * \frac{5 R}{2} * T$

= 30RT

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New answer posted•a year ago

Thermodynamics Class 11th

Find the speed of sound in oxygen gas at STP.

4 Views|Posted a year ago

Asked by Alok Kumar Singh

Answered by

Alok Kumar Singh | Contributor-Level 10

a year ago

Kindly go though the solution

$v = \sqrt[]{\frac{γ R T}{M}} = 330 m / s$

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New answer posted•a year ago

Thermodynamics Class 11th

A 1 mol ideal gas expands from 10 L to 100 L at 300 k, if above expansion takes place reversibly and isothermally then magnitude of work done is _____ (in KJ)

2 Views|Posted a year ago

Asked by Alok Kumar Singh

Answered by

Alok Kumar Singh | Contributor-Level 10

a year ago

$w = - n R T l n \frac{V_{2}}{V_{1}}$

$| w | = 2.303 n R T l o g \frac{V_{2}}{V_{1}}$

$| w | = 1 \times 2.303 \times 8.314 \times 300 l o g \frac{100}{10}$

|w| = 5744 J

|w| = 5.744 kJ » 6 kJ

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New answer posted•a year ago

Thermodynamics Class 11th

The P-V diagram of 4 g of helium gas for a certain process A → B is shown in the figure. What is the heat given to the gas during the process A → B?

24 Views|Posted a year ago

Asked by Alok Kumar Singh

Answered by

Alok Kumar Singh | Contributor-Level 10

a year ago

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New answer posted•a year ago

Thermodynamics Class 11th

Which of the following is correct for a reaction to be spontaneous?

3 Views|Posted a year ago

Asked by Alok Kumar Singh

Answered by

Alok Kumar Singh | Contributor-Level 10

a year ago

ΔG = ΔH – TΔS For spontaneity

ΔG = –ve

ΔS = + ve

ΔH = –ve

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New answer posted•a year ago

Thermodynamics Class 11th

Kindly consider the following

Entropy is a

1 Views|Posted a year ago

Asked by Alok Kumar Singh

Answered by

Alok Kumar Singh | Contributor-Level 10

a year ago

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