Heat Engines
« Previous Topic: Graph Related Problems Next Topic: Miscellaneous Problems on Thermodynamics »
Join With Us for More Updates
PHXI12:THERMODYNAMICS

371307 Which of the following conditions of the carnot ideal heat engine can be realised in practice?

1 Infinite thermal capacity of the source
2 Infinite thermal capacity of the sink
3 Perfectly non conducting stand
4 Less than \(100 \%\) efficiency
PHXI12:THERMODYNAMICS

371308 A steam engine delivers \(5.4 \times {10^8}\;J\) of work per minute and services \(3.6 \times {10^9}\;J\) of heat per minute from the boiler. What is the efficiency of the engine? How much heat is wasted per minute?

1 \(15\,\% ,1.1 \times {10^8}\;J/\min \)
2 \(30\,\% ,2.1 \times {10^8}\;J/\min \)
3 \(5\,\% ,1.9 \times {10^9}\;J/\min \)
4 \(15\,\% ,3.1 \times {10^9}\;J/\min \)
NCERT Exemplar
PHXI12:THERMODYNAMICS

371309 Two steam engines ' \(A\) ' and ' \(B\) ', have their sources respectively at \(700\;K\) and \(650\;K\) and their sinks at \(350\;K\) and \(300\;K\). Then

1 \(A\) ' is more efficient than ' \(B\) '
2 \(B\) ' more efficient than ' \(A\) '
3 Both are equally efficient
4 Depends of fuels used in \(A\) and \(B\)
PHXI12:THERMODYNAMICS

371310 An ideal heat engine can be \(100 \%\) efficient if its sink is at

1 \(0\;K\)
2 \(273\;K\)
3 \(0^\circ C\)
4 \(0^\circ F\)
For More Updates join with Us
PHXI12:THERMODYNAMICS

371307 Which of the following conditions of the carnot ideal heat engine can be realised in practice?

1 Infinite thermal capacity of the source
2 Infinite thermal capacity of the sink
3 Perfectly non conducting stand
4 Less than \(100 \%\) efficiency
PHXI12:THERMODYNAMICS

371308 A steam engine delivers \(5.4 \times {10^8}\;J\) of work per minute and services \(3.6 \times {10^9}\;J\) of heat per minute from the boiler. What is the efficiency of the engine? How much heat is wasted per minute?

1 \(15\,\% ,1.1 \times {10^8}\;J/\min \)
2 \(30\,\% ,2.1 \times {10^8}\;J/\min \)
3 \(5\,\% ,1.9 \times {10^9}\;J/\min \)
4 \(15\,\% ,3.1 \times {10^9}\;J/\min \)
NCERT Exemplar
PHXI12:THERMODYNAMICS

371309 Two steam engines ' \(A\) ' and ' \(B\) ', have their sources respectively at \(700\;K\) and \(650\;K\) and their sinks at \(350\;K\) and \(300\;K\). Then

1 \(A\) ' is more efficient than ' \(B\) '
2 \(B\) ' more efficient than ' \(A\) '
3 Both are equally efficient
4 Depends of fuels used in \(A\) and \(B\)
PHXI12:THERMODYNAMICS

371310 An ideal heat engine can be \(100 \%\) efficient if its sink is at

1 \(0\;K\)
2 \(273\;K\)
3 \(0^\circ C\)
4 \(0^\circ F\)
NEET DIGITAL LIBRARY
PHXI12:THERMODYNAMICS

371307 Which of the following conditions of the carnot ideal heat engine can be realised in practice?

1 Infinite thermal capacity of the source
2 Infinite thermal capacity of the sink
3 Perfectly non conducting stand
4 Less than \(100 \%\) efficiency
PHXI12:THERMODYNAMICS

371308 A steam engine delivers \(5.4 \times {10^8}\;J\) of work per minute and services \(3.6 \times {10^9}\;J\) of heat per minute from the boiler. What is the efficiency of the engine? How much heat is wasted per minute?

1 \(15\,\% ,1.1 \times {10^8}\;J/\min \)
2 \(30\,\% ,2.1 \times {10^8}\;J/\min \)
3 \(5\,\% ,1.9 \times {10^9}\;J/\min \)
4 \(15\,\% ,3.1 \times {10^9}\;J/\min \)
NCERT Exemplar
PHXI12:THERMODYNAMICS

371309 Two steam engines ' \(A\) ' and ' \(B\) ', have their sources respectively at \(700\;K\) and \(650\;K\) and their sinks at \(350\;K\) and \(300\;K\). Then

1 \(A\) ' is more efficient than ' \(B\) '
2 \(B\) ' more efficient than ' \(A\) '
3 Both are equally efficient
4 Depends of fuels used in \(A\) and \(B\)
PHXI12:THERMODYNAMICS

371310 An ideal heat engine can be \(100 \%\) efficient if its sink is at

1 \(0\;K\)
2 \(273\;K\)
3 \(0^\circ C\)
4 \(0^\circ F\)
Join With Us for More Updates
PHXI12:THERMODYNAMICS

371307 Which of the following conditions of the carnot ideal heat engine can be realised in practice?

1 Infinite thermal capacity of the source
2 Infinite thermal capacity of the sink
3 Perfectly non conducting stand
4 Less than \(100 \%\) efficiency
PHXI12:THERMODYNAMICS

371308 A steam engine delivers \(5.4 \times {10^8}\;J\) of work per minute and services \(3.6 \times {10^9}\;J\) of heat per minute from the boiler. What is the efficiency of the engine? How much heat is wasted per minute?

1 \(15\,\% ,1.1 \times {10^8}\;J/\min \)
2 \(30\,\% ,2.1 \times {10^8}\;J/\min \)
3 \(5\,\% ,1.9 \times {10^9}\;J/\min \)
4 \(15\,\% ,3.1 \times {10^9}\;J/\min \)
NCERT Exemplar
PHXI12:THERMODYNAMICS

371309 Two steam engines ' \(A\) ' and ' \(B\) ', have their sources respectively at \(700\;K\) and \(650\;K\) and their sinks at \(350\;K\) and \(300\;K\). Then

1 \(A\) ' is more efficient than ' \(B\) '
2 \(B\) ' more efficient than ' \(A\) '
3 Both are equally efficient
4 Depends of fuels used in \(A\) and \(B\)
PHXI12:THERMODYNAMICS

371310 An ideal heat engine can be \(100 \%\) efficient if its sink is at

1 \(0\;K\)
2 \(273\;K\)
3 \(0^\circ C\)
4 \(0^\circ F\)
For More Updates join with Us