Two engines A and B have their sources at 400 K and 350 K and sinks at 350 K and 300 K respectively. Which engine is more efficient and by how much ?

Two engines A and B have their sources at 400 K and 350 K and sinks at 350 K and 300 K respectively. Which is more efficient and by how much ?

Two steam engines 'A' and 'B', have their sources respectively at 700K and 650 K and their sinks at 350 K and 300K. Then

Two carnote engines A and B have their sources at 1000 K and 1100 K and their sinks are at 400 K and 500 K respectively. If eta_(A) and eta_(B) are their efficiencies,

The temperature of source and sink of a carnot engine are 400K and 300k respectively its efficiecy is

Two carnot engine A and B operate respectively between 500 K and 400 K , and 400 K and 300 K . What is the percentage difference in their efficiencies ?

Two samples of DNA, A and B have melting points 340K and 350 K respectively. This is because

Two samples of DNA, A and B have melting points 340K and 350 K respectively. This is because