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Basic terms of thermodyn..



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Q1. Whenever heat is transferred through a finite temperature difference, there is always a decrease in the availability of energy so transferred.

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

Q2. The available energy is known as ____ and the unavailable energy is known as ____

(a) energy, exergy
(b) exergy, energy
(c) both are called exergy
(d) both are called energy

Q3. The lowest practicable temperature of heat rejected is the

(a) given temperature
(b) 0K
(c) temperature of surroundings
(d) 273K

Q4. The unavailable energy is the product of the lowest temperature of heat rejection and the change of entropy of system during the process of supplying heat.

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

Q5. The ____ obtainable from a certain heat input in a cyclic heat engine is called ____

(a) minimum work output, available energy
(b) maximum work output, available energy
(c) minimum work input, unavailable energy
(d) none of the mentioned

Q6. The part of ____ available for conversion is referred to ____

(a) high grade energy, available energy
(b) low grade energy, available energy
(c) low grade energy, unavailable energy
(d) high grade energy, unavailable energy

Q7. Which of the following is an example of low grade energy?

(a) heat or thermal energy
(b) heat from nuclear fission or fusion
(c) heat from combustion of fossil fuel
(d) all of the mentioned

Q8. The complete conversion of heat into shaft-work is impossible.

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

Q9. Which of the following is an example of high grade energy?

(a) mechanical work
(b) electrical energy
(c) water power and wind power
(d) all of the mentioned

Q10. . Which of the following is a type of energy?

(a) high grade energy
(b) low grade energy
(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 241 Year Ago Bhavna

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Bhavna
241 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

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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 241 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 241 Year Ago

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