# a heat engine has a cold reservoir that is 280

## a heat engine has a cold reservoir that is 280

An ideal heat engine operating at 15 % efficiency exhausts heat into a cold reservoir at 280 K. By how much would the temperature of the hot …

## What is hot and cold reservoir in refrigerator?

· The Organic Chemistry Tutor

## What is the temperature of the cold reservoir?

The hot and cold reservoir temperatures are given as 300ºC and 27.0ºC, respectively. In kelvins, then, Th = 573 K and Tc = 300 K, so that the maximum efficiency is EffC=1−TcTh E f f C = 1 − T c T h .

## What is hot reservoir in refrigeration?

For a kitchen. refrigerator, the space inside. it is the cold reservoir and. the space outside it is the. hot reservoir.

## Can you transfer heat from cold reservoir to hot?

The answer is a. Heat will never be transferred from a cold reservoir to a hot reservoir in nature.

## What is the cold reservoir?

In the case of the automobile engine, the hot reservoir is the burning fuel and the cold reservoir is the environment to which the combustion products are exhausted.

## How do you measure the temperature of a hot reservoir?

· Doubtnut Web Desk

## What is the temperature of the hot reservoir?

The hot reservoir for a Carnot engine has a temperature of 890 K, while the cold reservoir has a temperature of 670 K.25-Dec-2020

## What is the hot reservoir temperature of a Carnot?

The hot reservoir temperature of a Carnot engine is 277°C.

Carnot Efficiency is the temperature of the heat reservoir. This describes the efficiency of an idealized engine, which in reality is impossible to achieve. From this equation, the lower the sink temperature or the higher the source temperature , the more work is available from the heat engine. is the temperature of the heat reservoir. This describes the efficiency of an idealized engine, which in reality is impossible to achieve. From this equation, the lower the sink temperature or the higher the source temperature , the more work is available from the heat engineheat engineThe efficiency of various heat engines proposed or used today has a large range: 3% (97 percent waste heat using low quality heat) for the ocean thermal energy conversion (OTEC) ocean power proposal. 25% for most automotive gasoline engines.https://en.wikipedia.org › wiki › Heat_engineHeat engine – Wikipedia.18-May-2018

## What is cold reservoir?

In the case of the automobile engine, the hot reservoir is the burning fuel and the cold reservoir is the environment to which the combustion products are exhausted.

## What is the Kelvin temperature of the cold reservoir?

The hot and cold reservoir temperatures are given as 300ºC and 27.0ºC, respectively. In kelvins, then, Th = 573 K and Tc = 300 K, so that the maximum efficiency is EffC=1−TcTh E f f C = 1 − T c T h .

## How do you calculate the actual efficiency of a heat engine?

efficiency =WQH=1−TCTH. These temperatures are of course in degrees Kelvin, so for example the efficiency of a Carnot engine having a hot reservoir of boiling water and a cold reservoir ice cold water will be 1−(273/373)=0.27, just over a quarter of the heat energy is transformed into useful work.

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