Part 1

A Carnot engine sink temperature 17 degree Celsius has 50 percent efficiency. By how much should it source temperature be changed to increase efficiency 60 percent ? A Carnot engine sink temperature 17 degree Celsius has 50 percent efficiency. By how much should it source temperature be changed to increase efficiency 60 percent ? September [...]

In a Carnot engine , the temperature of the reservoir is 927 C and that of sink is 127 C . If the work done by the engine when it transfers heat from the reservoir to sink is 12.6 x 10^6 J . the quantity of heat absorbed by the engine from the reservoir is [...]

A Carnot engine working between 27^oC and 127^oC has a work output of 200 J per cycle. The energy supplied to the engine from the source in each cycle is A Carnot engine working between 27^oC and 127^oC has a work output of 200 J per cycle. The energy supplied to the engine from the [...]

The efficiency of a Carnot engine working between ice point and steam point is The efficiency of a Carnot engine working between ice point and steam point is September 12, 2021 Category: Chapter 15 - Thermodynamics , MTG NEET Physics ,

The inside and out side temperatures of a refrigerator are 273K and 303K respectively. Assuming that refrigerator cycle is reversible for every joule of work done , the heat delivered to the surroundings will be the heat delivered to the surroundings will be The inside and out side temperatures of a refrigerator are 273K and [...]

A Carnot engine takes 3 × 10^6 cal of heat from a reservoir at 627°C, and gives it to a sink at 27°C. The work done by the engine is A Carnot engine takes 3 × 10^6 cal of heat from a reservoir at 627°C and gives it to a sink at 27°C. The work [...]

A refrigerator is to maintain eatables kept inside at 9 degree Celsius. The coefficient of performance of the refrigerator if room temperature is 36 degree Celsius is A refrigerator is to maintain eatables kept inside at 9 degree Celsius. The coefficient of performance of the refrigerator if room temperature is 36 degree Celsius is September [...]

A steam engine delivers 5.4 × 10^8 J of work per minute and services 3.6 × 10^9 J of heat per minute from its boiler. What Is the efficiency of the heat engine? A steam engine delivers 5.4 × 10^8 J of work per minute and services 3.6 × 10^9 J of heat per minute [...]

A heat engine has an efficiency n. Temperatures of source and sink are each decreased by 100 K. The efficiency of the engine: A heat engine has an efficiency n. Temperatures of source and sink are each decreased by 100 K. The efficiency of the engine: September 12, 2021 Category: Chapter 15 - Thermodynamics , [...]

The efficiency of Carnot engine is 50% and temperature of sink is 500 K. If temperature of source is kept constant and its efficiency raised to 60%, then the required temperature of sink will be The efficiency of Carnot engine is 50% and temperature of sink is 500 K. If temperature of source is kept [...]