Question: THERMODYNAMICS Round off all values to 4 decimal places only Answer a and b (a) A 1000 K heat source is used in a heat

THERMODYNAMICS Round off all values to 4 decimal places only Answer a and b

(a) A 1000 K heat source is used in a heat engine. The effectiveness was excellent. It is estimated to be around 50%, and it is desired to raise it to 55%. If the heat sink remains constant, what should the temperature of the heat source be to effect this change? For the heat engine, assume a carnot cycle.

(b) A heat engine has a 35 percent efficiency and emits waste heat at 8C to a sink. How would a 200K increase in the temperature of the heat source effect the efficiency?

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