1.5. A refrigerator is used to cool 4 litres of soft drink from room temperature (25 °C) to 3 °C. Ifthe density of the soft drink is 1015 kg/m3 (1 litre = 0.001 m³), how much heat must be removedif the specific heat of the soft drink is 4350 J/kg °C.1.6. An engine operating in a cycle absorbs 5000 cal of the heat from a heat source and performs2000 cal of work. Calculate:(a) The amount of heat discarded in this cycle(b) The efficiency of the engine

AS PER GUIDELINE I HAVE TO SOLVE ONLY FIRST QUESTION

1.5. A refrigerator is used to cool 4 litres of soft drink from room temperature (25 °C) to 3 °C. If the density of the soft drink is 1015 kg/m3 (1 litre = 0.001 m³), how much heat must be removed if the specific heat of the soft drink is 4350 J/kg °C.

1.5. A refrigerator is used to cool 4 litres of soft drink from room temperature (25 °C) to 3 °C. If the density of the soft drink is 1015 kg/m3 (1 litre = 0.001 m³), how much heat must be removed if the specific heat of the soft drink is 4350 J/kg °C.

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter2: Matter And Energy

Section: Chapter Questions

Problem 26RQ: How many Btu of heat can be produced by 4 kWh ofelectricity?

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Concept explainers

Properties of Fluids

The term fluid represents a type of substance that can easily change its shape under any external pressure/force and can flow. Fluids can acquire any shape in which it is stored and can resist normal stresses but cannot resist shear stress in rest condition. Whenever external shear stress is applied to fluids, it starts to flow. The fluids may be liquid or gas. Example- water, air, etc.

Question

1.5. A refrigerator is used to cool 4 litres of soft drink from room temperature (25 °C) to 3 °C. If
the density of the soft drink is 1015 kg/m3 (1 litre = 0.001 m³), how much heat must be removed
if the specific heat of the soft drink is 4350 J/kg °C.
1.6. An engine operating in a cycle absorbs 5000 cal of the heat from a heat source and performs
2000 cal of work. Calculate:
(a) The amount of heat discarded in this cycle
(b) The efficiency of the engine

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