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Expansion of an ideal gas



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Q1. Polytropic specific heat is given by cn=cv(?-n)/(1-n) .

(a) true
(b) false
(c) Both acidolysis and aldehyde
(d) None of the mentioned

Q2. For entropy change in a polytropic process, which of the following statement is true?

(a) when n=?, the entropy change becomes zero
(b) if p2>p1, for n<=?, the entropy of the gas decreases
(c) for n>?, the entropy of the gas increases
(d) all of the mentioned

Q3. In the equation p(v^n), n is calculated by

(a) (logp1 + logp2) / (logv2 + logv1)
(b) (logp1 ? logp2) / (logv2 ? logv1)
(c) (logp1 ? logp2) / (logv2 + logv1)
(d) none of the mentioned

Q4. Which of the following is true for a polytropic process?

(a) p(v^n) is used to describe the process
(b) it is not adiabatic
(c) it can be reversible
(d) all of the mentioned

Q5. For a reversible adiabatic process,

(a) p*(v^?) = constant
(b) T*(v^(?-1)) = constant
(c) T*(p^(1-?)/?) = constant
(d) all of the mentioned

Q6. For a reversible adiabatic change, ds=0.

(a) true
(b) false
(c) Both acidolysis and aldehyde
(d) None of the mentioned

Q7. Which of the following equation can be used to compute the entropy change between any two states of an ideal gas?

(a) s2-s1 = cv*ln(T2/T1) + R*ln(v2/v1)
(b) s2-s1 = cp*ln(T2/T1) ? R*ln(p2/p1)
(c) s2-s1 = cp*ln(v2/v1) + cv*ln(p2/p1)
(d) all of the mentioned

Q8. The maximum and minimum values of ? is

(a) 1.33, 1
(b) 2.00, 1
(c) 1.67, 1
(d) 1.25, 1

Q9. Which of the following statement is true?

(a) value of ? for monoatomic gases is 5/3
(b) value of ? for diatomic gases is 7/5
(c) for polyatomic gases, the value of ? is approximately taken as 4/3
(d) all of the mentioned

Q10. The value of cp and cv depend on

(a) temperature of the gas
(b) ? and R
(c) pressure of the gas
(d) all of the mentioned


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416 views

A Well Stoppered Thermos Flask Contains Some Ice Cubes. This Is An Example Of A

Modified 236 Year Ago Bhavna

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Bhavna
236 Year Ago

A Well Stoppered Thermos Flask Contains Some Ice Cubes. This Is An Example Of A

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0 Answer
364 views

Three Moles Of An Ideal Gas Expanded Spontaneously Into Vacuum. The Work Done Will Be

Modified 4 Year Ago

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Three Moles Of An Ideal Gas Expanded Spontaneously Into Vacuum. The Work Done Will Be

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In Order To Decompose 9 G Water 142.5 KJ Heat Is Required. Hence, The Enthalpy Of Formation Of Water Is

Modified 4 Year Ago

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4 Year Ago

In Order To Decompose 9 G Water 142.5 KJ Heat Is Required. Hence, The Enthalpy Of Formation Of Water Is

0 votes
0 Answer
350 views

Changes In A System From An Initial State To The Final State Were Made By A Different Manner That ΔH Remains Same But Q Changes Because

Modified 236 Year Ago

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236 Year Ago

Changes In A System From An Initial State To The Final State Were Made By A Different Manner That ΔH Remains Same But Q Changes Because

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347 views

If W Is The Amount Of Work Done By The System And Q Is The Amount Of Heat Supplied To The System. Identify The Type Of The System

Modified 236 Year Ago

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236 Year Ago

If W Is The Amount Of Work Done By The System And Q Is The Amount Of Heat Supplied To The System. Identify The Type Of The System

0 votes
0 Answer
334 views

The Entropy Change Involved In The Isothermal Reversible

Modified 313 Year Ago

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313 Year Ago

The Entropy Change Involved In The Isothermal Reversible

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Calculate The Amount Of Heat Evolved When 500 Cm^3 Of 0.1 M HCl Is Mixed With 200 Cm^3 Of 0.2 M NaOH.

Modified 4 Year Ago Bhuv

304
Bhuv
4 Year Ago

Calculate The Amount Of Heat Evolved When 500 Cm^3 Of 0.1 M HCl Is Mixed With 200 Cm^3 Of 0.2 M NaOH.

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