![subject](/tpl/images/cats/himiya.png)
Select the correct answer. What affects the efficiency of a heat engine? A. high friction between hot and cold reservoirs B. the heat difference between hot and cold reservoirs C. low friction between hot and cold reservoirs D. the temperature difference between hot and cold reservoirs
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 19:50
What is the wavelength of a wave with a velocity of 50 m/s and a frequency of 5hz a 250 m b 0.1 m c 10m d 0.01 m
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 23:00
The data below were determined for the reaction shown below. s2o82– + 3i – (aq) → 2so42– + i3– expt. # [s2o82–] (m) [i –] (m) initial rate 1 0.038 0.060 1.4 × 10 – 5 m/s 2 0.076 0.060 2.8 × 10 – 5 m/s 3 0.076 0.030 1.4 × 10 – 5 m/s the rate law for this reaction must be:
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 23:30
What are the similarities between compounds and mixtures?
Answers: 3
You know the right answer?
Select the correct answer. What affects the efficiency of a heat engine? A. high friction between ho...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 11.01.2021 17:20
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 11.01.2021 17:20
![question](/tpl/images/cats/mat.png)
Mathematics, 11.01.2021 17:20
![question](/tpl/images/cats/ekonomika.png)
Business, 11.01.2021 17:20
![question](/tpl/images/cats/mat.png)
Mathematics, 11.01.2021 17:20
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 11.01.2021 17:20
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/health.png)
Health, 11.01.2021 17:20
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 11.01.2021 17:20
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)