A Carnot engine operates between $\backslash (200^\{\backslash$circ$\}\backslash$mathrm$\{$C$\}\backslash )$ and $\backslash (20^\{\backslash$circ$\}\backslash$mathrm$\{$C$\}\backslash ).$ Its maximum possible efficiency is:

Select one:$24\backslash \%\backslash (90\backslash \%\backslash )2\backslash \%\backslash (100\backslash \%\backslash )38\backslash \%$

Question $7$

For an astronaut working outside a spaceship, the greatest loss of heat would occur by means of

Select one:censoxtion and radiation.conductionnadutioncerowetionconduction and corrvection.