For a Certain Ideal Carnot Engine, the Hot Reservoir Is $35 \mathrm { C } ^ { \circ }$

question 33

Multiple Choice

For a certain ideal Carnot engine, the hot reservoir is $35 \mathrm { C } ^ { \circ }$ higher than the cold reservoir. If this engine is to have an efficiency of $20 \%$ , what must be the temperature of the hot reservoir?

• A) \(245 \mathrm {~K}\)
• B) \(210 \mathrm {~K}\)
• C) \(70.0 \mathrm {~K}\)
• D) \(140 \mathrm {~K}\)
• E) \(175 \mathrm {~K}\)

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