Carnot Engine

Even Carnot engine cannot give $100\%$ efficiency because we cannot

Explain the carnot cycle in brief.

In a Carnot cycle, the working substance either remains at the temperature of the source or at the temperature of the sink.

According to Carnot’s theorem, all heat engines operating between a given constant temperature source and sink, none has a _____ efficiency than a reversible engine.

The efficiency of all reversible heat engines operating between the same heat reservoirs is :

Irrespective of the operation details, every Carnot engine is efficient between two heat reservoirs.

State the carnot theorem.

calculate the work done on the gas in carnot cycle during compression.

Isothermal compression in Carnot cycle happened at _____.

The correct sequence of the processes taking place in a carnot cycle is

The third process is isothermal compression.

A carnot engine has an efficiency of $30\%$.Its efficiency is to be increased to $50\%$.By what must the temperature of the source be increased if the sink is at $300 \mathrm{K}$?

The Carnot cycle of a reversible heat engine consists of two isothermal and two _____ processes.

 A cyclic heat engine does 50kJ of work per cycle. If efficiency of engine is 75%, the heat rejected per cycle will be

In the Carnot cycle, there are a total of 4 processes which take place?

The temperatures $T_1$ and $T_2$ of heat reservoirs in the ideal Carnot engine are $1227 °\mathrm{C}$ and $527 °\mathrm{C}$ respectively. If $T_1$ increases by $100 °\mathrm{C}$, the efficiency of the engine in percentage is

A Carnot engine absorbs $750 \mathrm{J}$ of heat energy from a reservoir at $137 \mathrm{℃}$ and rejects $500 \mathrm{J}$ of heat during each cycle, then the temperature of sink is

Air in a cylinder is suddenly compressed by a piston which is then maintained at the same position. As the time passes, pressure of the gas,

When temperture ${\mathrm{T}}_1$ of heat reservoir increases by ${200}^{\mathrm{o}}\mathrm{C}$, the efficiency of the engine is nearly equal to __, if the temperatures $T_1$ and $T_2$ of heat reservoirs in an ideal Carnot engine are ${1800}^{\mathrm{o}}\mathrm{C}$ and ${600}^{\mathrm{o}}\mathrm{C}$ respectively. 

A Carnot's cycle operating between ${\mathrm{T}}_1=600\mathrm{ }\mathrm{K}\mathrm{ }$ and ${\mathrm{T}}_2=300\mathrm{ }\mathrm{K}$ produces $1.5 \mathrm{k}\mathrm{J}$ of mechanical work per cycle. The heat transferred to the engine by the reservoir is: