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Laws of thermochemistry



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Q1. It is better to state that ?the change of state is irreversible, rather than say it is an irreversible process?.

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

Q2. The entropy change of a system between two identifiable equilibrium state is ___ when the intervening process is reversible or change of state is irreversible.

(a) different
(b) same
(c) depends on the process
(d) none of the mentioned

Q3. The equation TdS=dH-Vdp

(a) relates only the properties of a system
(b) there is no path function term in the equation
(c) the equation holds good for any process
(d) all of the mentioned

Q4. The equation dQ=TdS is true only for a reversible process.

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

Q5. The equation TdS=dU+pdV holds good for

(a) reversible process
(b) reversible process
(c) both of the mentioned
(d) none of the mentioned

Q6. The equation dQ=dU+pdV holds good for

(a) open system
(b) closed system
(c) both of the mentioned
(d) none of the mentioned

Q7. The equation dQ=dU+pdW holds good for any process undergone by a closed stationary system.

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

Q8. The equation dQ=dE+dW holds good for

(a) any process, reversible or irreversible
(b) only reversible process
(c) only irreversible process
(d) none of the mentioned

Q9. Which of the following equation is true?

(a) TdS=dH+Vdp
(b) TdS=dH-Vdp
(c) TdS=-dH-Vdp
(d) TdS=-dH+Vdp

Q10. The equation TdS=dU+pdV is obtained from which law?

(a) first law
(b) second law
(c) both of the mentioned
(d) none of the mentioned


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The Relation Between H And U Is

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The Relation Between H And U Is

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

Modified 242 Year Ago Bhavna

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Bhavna
242 Year Ago

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

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

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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 10 Year Ago

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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

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352 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 242 Year Ago

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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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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 242 Year Ago

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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

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