Question

ompare the thermodynamic efficiencies to be expected (a) when an engine operates

between 1000 K and 300K, (b) when an engine operates between 1000 K and 600K

and waste heat is passed to and another engine working between 600K and 300
​

Answer 1

Answer:

Answer:

Given : For Carnot engine,

⇒T1=600K       T2=300K

⇒W=800J

We know,

Efficiency (n)=1−T1T2=QW

⇒QW=1−600300

⇒Q=1−21W

⇒21800

⇒Q=1600J

i.e, heat given to system is 1600J.

Hence, the answer is 1600.