How much heat is exhausted in each cycle and heat transfer process analysis?
1. A heat engine has an efficiency of 35.0% and receives 128 J of heat per cycle. How much heat (in Joules) does it exhaust in each cycle?
1. The heat transfer exhausts 83.2 J per cycle.
Heat Transfer Calculation:
2. A refrigerator extracts 80.0 J of heat from a heat reservoir at 0.00°C. If the coefficient of performance of the refrigerator is 1.6, then how much heat (in Joules) is discharged out of the refrigerator?
2. The refrigerator discharges 200 J of heat.
Heat Discharge Calculation:
The amount of heat discharged by the refrigerator can be calculated using the formula: Q2 = Q1 / (Coefficient of performance - 1) Where: Q1 = Heat extracted = 80.0 J Coefficient of performance = 1.6 Substitute the values into the formula: Q2 = 80.0 J / (1.6 - 1) = 200 J Therefore, the refrigerator discharges 200 Joules of heat.3. A heat pump uses 100 J of work to output heat at some temperature. If the heat pump withdraws 50 J of heat from the lower temperature reservoir, then what is the coefficient of performance for the heat pump?
3. The heat pump has a coefficient of performance of 1.5.