Which is/are FALSE about the following statements? 1. If the amount of heat supplied to the heated space is divided by the work supplied to a device, the quantity is called X. II. A heat pump delivers 2.5 kWh of energy to the house while consuming 1 kWh of electricity. Select one: a. The quantity X in statement I represents the COP of a refrigerator b. None of the above c. All of the above d. The quantity X in statement I represents the COP of an air-conditioner e. Statement II law of thermodynamics since the heat delivered to the house is greater than the work input to the heat pump violates the 2

Which is/are FALSE about the following statements? 1. If the amount of heat supplied to the heated space is divided by the work supplied to a device, the quantity is called X. II. A heat pump delivers 2.5 kWh of energy to the house while consuming 1 kWh of electricity. Select one: a. The quantity X in statement I represents the COP of a refrigerator b. None of the above c. All of the above d. The quantity X in statement I represents the COP of an air-conditioner e. Statement II law of thermodynamics since the heat delivered to the house is greater than the work input to the heat pump violates the 2

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Properties of Pure Substances

A substance with fixed chemical composition throughout is called a pure substance like water, air, and nitrogen. A pure substance does not have to be a single element or compound. A mixture of two or more phases of a pure substance is also a pure substance as long as the chemical composition is the same for all phases. These substances mainly have a constant/ uniform composition. The substances also have fixed boiling and melting points. A pure substance takes part in a chemical reaction to form predictable products.

Question

Which is/are FALSE about the following statements?
I.
If the amount of heat supplied to the heated space is divided by the work supplied to a device, the quantity is
called X.
II. A heat pump delivers 2.5 kWh of energy to the house while consuming 1 kWh of electricity.
Select one:
a. The quantity X in statement I represents the COP of a refrigerator
b. None of the above
c. All of the above
d. The quantity X in statement I represents the COP of an air-conditioner
law of thermodynamics since the heat delivered to the house is
greater than the work input to the heat pump
e. Statement II
violates the 2

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