MEDIUM
11th ICSE
IMPORTANT
Earn 100

A Carnot engine whose low-temperature reservoir is at has an efficiency of . It is desired to increase the efficiency to . By how many degree should the temperature of the high-temperature reservoir be raised?

Important Questions on Carnot's Heat Engine : Second Law of Thermodynamics
EASY
11th ICSE
IMPORTANT
The law of thermodynamics which leads to the conclusion that it is impossible to convert 'all' the heat extracted from a hot source into work is :

MEDIUM
11th ICSE
IMPORTANT
A Carnot engine, whose efficiency is , takes in heat from a source maintained at a temperature of . It is desired to have an engine of efficiency . Then, the intake temperature for the same exhaust (sink) temperature must be

MEDIUM
11th ICSE
IMPORTANT
The second law of thermodynamics implies that :

MEDIUM
11th ICSE
IMPORTANT
The efficiency of Carnot's heat engine is determined by the temperature of :

EASY
11th ICSE
IMPORTANT
Theoretically, the efficiency of a Carnot engine is when the temperature of the sink is :

EASY
11th ICSE
IMPORTANT
A Carnot engine operation between temperatures and has efficiency . When is lowered by , its efficiency increases to . Then and are, respectively,

MEDIUM
11th ICSE
IMPORTANT
A Carnot engine has an efficiency of . The temperature of the sink is . By how much should the temperature of the source be increased so as to increase the efficiency to ?

MEDIUM
11th ICSE
IMPORTANT
The temperatures of the source and the sink of a Carnot's engine are and respectively. The efficiency of the engine will increase if temperatures of :
