Carnot Engine

A Carnot engine has an efficiency of $50\%$ when its source is at a temperature $327 °\mathrm{C}.$ The temperature of the sink is:

Work done by a Carnot engine operating between temperatures $127°\mathrm{C}$ and $27°\mathrm{C}$ is $2 \mathrm{kJ}$. The amount of heat transferred to the engine by the reservoir is:

A Carnot engine working between $27° \mathrm{C}$ and $127° \mathrm{C}$ performs $2 \mathrm{kJ}$ of work. The amount of heat rejected is equal to

A Carnot engine operates between temperature $304 \mathrm{K}$ and $380 \mathrm{K}$. Find the ratio of new efficiency when temperature of sink is lowered by $19 \mathrm{K}$ to initial efficiency.

The efficiency of a Carnot engine at a particular source and sink temperature is$\frac{1 }{2}$. When the sink temperature is reduced by $100°C$ the engine's efficiency becomes $\frac{2}{3}$. Find the source temperature.

The efficiency of the Carnot cycle is

A Carnot engine operates between a source and a sink. The efficiency of the engine is $40\%$ and the temperature of the $sink$ is $27°\mathrm{C}$. If the efficiency is to be increased to $50\%$ then the temperature of the source must the increased by

The temperature of the sink of a Carnot engine is $250 \mathrm{K}$. In order to increase the efficiency of the Carnot engine from $25\%$ to $50\%$, the temperature of the sink should be increased by

An ideal Carnot engine working with source temperature $T_1$ and sink temperature $T_2$, has efficiency $\eta$. Then the value of the ratio $\frac{T_1}{T_2}$ is

Consider a Carnot cycle operating between 300 K and 600 K and producing 2 kJ of mechanical work per cycle. Heat rejected to the surrounding in a cycle is

Consider a Carnot cycle operating between $300 \mathrm{K}$ and $600 \mathrm{K}$ and producing $2 \mathrm{kJ}$ of mechanical work per cycle. Heat rejected to the surrounding in a cycle is

Work done during free expansion of an ideal gas in an isothermal process is zero. Explain

The efficiency of Carnot's cycle at a particular source and sink temperature is $\frac{1}{3}$. When sink temperature is increased by $100°\mathrm{C}$ then engine efficiency becomes $\frac{1}{5}$. The source temperature is 

During a compression of an ideal gas, the work done by the system is _____.

The work done by the system in expansion is negative.

Efficiency of a carnot heat engine is $60\%$. If sink temperature is $27°\mathrm{C}$, then find source temperature $\left(\text{in} \mathrm{K}\right)$.

The efficiency of the reversible heat engine is ${\eta }_r$ and that of irreversible heat engine is ${\eta }_i$. Which of the following is correct?

If temperature of the source is increased,the efficiency of carnot engine is

What is the source temperature of the Carnot engine in $\mathrm{K}$ required to get $70\%$ efficiency ? Given sink temperature $= 27 °\mathrm{C}$

Carnot cycle works with isentropic compression ratio of $5\mathrm{bar}$ and heat capacity ratio of $2$. The volume of air at the beginning of the isothermal expansion is$0.3{\mathrm{m}}^3$. If the temperature and pressure is limited to $550\mathrm{K}$ and $21\mathrm{bar}$, determine minimum temperature in the cycle.