Answer Happy

Learning Goal: Thermal Engines and Refrigerators in General Carnot Engines for Maximum Efficiency Q.-Q. +W engine refrigerator W-0-0, A heat engine, represented here by a circle, uses part of the heat transfer to do work. The hot and cold objects are called the hot and cold reservoirs. Qn is the heat transfer from the hot reservoir to the engine, W is the work output, and Q, is the heat transfer into the cold reservoir Qh Qc and W are all taken as POSITIVE. Conservation of energy stipulates that Qh = Qc+W. Thus the work W = Q - Qc The efficiency of a heat engine is defined to be its work output W divided by heat transfer to the engine Qh that is, e it can also be written as e Carnot found that for a (reversible) heat engine Pode-1-4 용 Therefore, For a Camot (reversible) engine, the maximum or Carnot efficiency is given by T. ema=1 7 (Temperature must be in Kevin) Note: NOT ALL ENGINES have Carnot efficiency. if the cycle of a heat enegine is reversed, it works as a refrigerator

Part D-Case 2: A heat engine with an efficiency of 30% does 1400.0 J work per cycle. How much heat is dumped to the COLD reservoir in one cycle? Keep 1 digit after the decimal point in Joules VE ΑΣφ και η ? Case 2 Qc = Submit Request Answer Part E-Case 3: A heat engine with an efficiency of 35% dumps 3800.0 J heat to the COLD reservoir per cycle. How much heat is taken from the HOT reservoir in one cycle? Keep 1 digit after the decimal point, in Joules VO ΑΣφ. ? ? Case 3 Q- Submit Request Answer Part F. Case 3: A heat engine with an efficiency of 35% dumps 3800.0 J heat to the COLD reservoir per cycle. How much work is done by this engine in one cycle?

Part A. Case 1: A heat engine with an efficiency of 0.23 takes in 2100.0 J heat from the HOT reservoir per cycle. How much work is done by this engine in one cycle? Keep 1 digit after the decimal point, in Joules 190 AX¢ ? ? Case 1 W J Submit Request Answer Part B-Case 1: A heat engine with an efficiency of 0.23 takes in 2100.0 J heat from the HOT reservoir per cycle. How much heat is dumped to the COLD reservoir in one cycle? Keep 1 digit after the decimal point, in Joules VO AEC ? t Case 1 Q- Submit Request Answer Part C-Case 2: A heat engine with an efficiency of 30% does 1400.0 J work per cycle. How much heat is taken from the HOT reservoir in one cycle? Keep 1 digit after the decimal point, in Joules IVO AXO ?