Second Law of Thermodynamics and Carnot Engine
« Previous Topic: Refrigerators and Heat Pumps Next Topic: Specific Heat and Molar Heat Capacities »
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
PHXI12:THERMODYNAMICS

371367 If the temperatures of source and sink of a Carnot engine having efficiency \(\eta\) are each decrease by \(100\;K\), then the efficiency

1 Remains constant
2 Becomes 1
3 Decreases
4 Increases
PHXI12:THERMODYNAMICS

371368 A Carnot engine, whose sink is at \(300\;K\), has an efficiency of \(40 \%\). By how much the source temperature should be changed so as to increase the efficiency to \(60 \%\) ?

1 \(250\;K\) increase
2 \(250\;K\) decrease
3 \(325\;K\) increase
4 \(325\;K\) decrease
PHXI12:THERMODYNAMICS

371369 In a Carnot engine temperature of source is \(127^\circ C\) with efficiency \(60\,\% \). Find out temperature of sink \(\left( {^\circ C} \right)\)

1 143
2 -105
3 -113
4 113
JEE - 2021
PHXI12:THERMODYNAMICS

371370 For which combination of working temperatures, the efficiency of 'Carnot's engine' is the least?

1 \(40\;K,\,20\;K\)
2 \(60\;K,40\;K\)
3 \(100\;K,80\;K\)
4 \(80\;K,60\;K\)
KCET - 2017
NEET DIGITAL LIBRARY
PHXI12:THERMODYNAMICS

371367 If the temperatures of source and sink of a Carnot engine having efficiency \(\eta\) are each decrease by \(100\;K\), then the efficiency

1 Remains constant
2 Becomes 1
3 Decreases
4 Increases
PHXI12:THERMODYNAMICS

371368 A Carnot engine, whose sink is at \(300\;K\), has an efficiency of \(40 \%\). By how much the source temperature should be changed so as to increase the efficiency to \(60 \%\) ?

1 \(250\;K\) increase
2 \(250\;K\) decrease
3 \(325\;K\) increase
4 \(325\;K\) decrease
PHXI12:THERMODYNAMICS

371369 In a Carnot engine temperature of source is \(127^\circ C\) with efficiency \(60\,\% \). Find out temperature of sink \(\left( {^\circ C} \right)\)

1 143
2 -105
3 -113
4 113
JEE - 2021
PHXI12:THERMODYNAMICS

371370 For which combination of working temperatures, the efficiency of 'Carnot's engine' is the least?

1 \(40\;K,\,20\;K\)
2 \(60\;K,40\;K\)
3 \(100\;K,80\;K\)
4 \(80\;K,60\;K\)
KCET - 2017
Join With Us for More Updates
PHXI12:THERMODYNAMICS

371367 If the temperatures of source and sink of a Carnot engine having efficiency \(\eta\) are each decrease by \(100\;K\), then the efficiency

1 Remains constant
2 Becomes 1
3 Decreases
4 Increases
PHXI12:THERMODYNAMICS

371368 A Carnot engine, whose sink is at \(300\;K\), has an efficiency of \(40 \%\). By how much the source temperature should be changed so as to increase the efficiency to \(60 \%\) ?

1 \(250\;K\) increase
2 \(250\;K\) decrease
3 \(325\;K\) increase
4 \(325\;K\) decrease
PHXI12:THERMODYNAMICS

371369 In a Carnot engine temperature of source is \(127^\circ C\) with efficiency \(60\,\% \). Find out temperature of sink \(\left( {^\circ C} \right)\)

1 143
2 -105
3 -113
4 113
JEE - 2021
PHXI12:THERMODYNAMICS

371370 For which combination of working temperatures, the efficiency of 'Carnot's engine' is the least?

1 \(40\;K,\,20\;K\)
2 \(60\;K,40\;K\)
3 \(100\;K,80\;K\)
4 \(80\;K,60\;K\)
KCET - 2017
For More Updates join with Us
PHXI12:THERMODYNAMICS

371367 If the temperatures of source and sink of a Carnot engine having efficiency \(\eta\) are each decrease by \(100\;K\), then the efficiency

1 Remains constant
2 Becomes 1
3 Decreases
4 Increases
PHXI12:THERMODYNAMICS

371368 A Carnot engine, whose sink is at \(300\;K\), has an efficiency of \(40 \%\). By how much the source temperature should be changed so as to increase the efficiency to \(60 \%\) ?

1 \(250\;K\) increase
2 \(250\;K\) decrease
3 \(325\;K\) increase
4 \(325\;K\) decrease
PHXI12:THERMODYNAMICS

371369 In a Carnot engine temperature of source is \(127^\circ C\) with efficiency \(60\,\% \). Find out temperature of sink \(\left( {^\circ C} \right)\)

1 143
2 -105
3 -113
4 113
JEE - 2021
PHXI12:THERMODYNAMICS

371370 For which combination of working temperatures, the efficiency of 'Carnot's engine' is the least?

1 \(40\;K,\,20\;K\)
2 \(60\;K,40\;K\)
3 \(100\;K,80\;K\)
4 \(80\;K,60\;K\)
KCET - 2017
NEET DIGITAL LIBRARY