Physics, 13.12.2019 21:31 selenaK9514
Which of the following changes will always increase the efficiency of a thermodynamic engine? choose all correct statements.
check all that apply.
a. decrease the hot reservoir temperature th while keeping the cool reservoir temperature tc constant.
b. increase the difference th−tc.
c. decrease the ratio tc/th.
d. increase th while keeping tc constant. increase tc while keeping th constant. decrease tc while keeping th constant.
Answers: 2
efficiency can be increased by Keeping 
constant and increasing 
ratio      Another question on Physics
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