When the well-isolated office room is entered in the summer, it is seen that the temperature of the room is 35 °C. After operating the air conditioner, the temperature of the room becomes 22 °C within At minutes. The coefficient of performance of the air conditioning system is 2.5, a) find the internal energy changing in the room and b) calculate the electrical power consumed by the system. Assume that the whole mass inside the room is equivalent to 700 kg of air. Take C = 0.72 kJ / kg°C, C, = 1.0 kJ / kg°C for air. Use the below table for At value. Last one digit of your student number At (minutes) Win 15 1 14 AC 35 °C 13 3 12 22 °C 4 11 5 10 7 8 7 9.

When the well-isolated office room is entered in the summer, it is seen that the temperature of the room is 35 °C. After operating the air conditioner, the temperature of the room becomes 22 °C within At minutes. The coefficient of performance of the air conditioning system is 2.5, a) find the internal energy changing in the room and b) calculate the electrical power consumed by the system. Assume that the whole mass inside the room is equivalent to 700 kg of air. Take C = 0.72 kJ / kg°C, C, = 1.0 kJ / kg°C for air. Use the below table for At value. Last one digit of your student number At (minutes) Win 15 1 14 AC 35 °C 13 3 12 22 °C 4 11 5 10 7 8 7 9.

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

Laws of thermodynamics

Thermodynamics is a field of research, which needs the creation of absolute and ideal states and logical and practical examination of the actual conditions. By considering all the laws and theories of thermodynamics, the chemical reactions, the occurrence of processes, and physiological functions can be predicted with this field.

Question

LAST DIGIT IS 5, So delta t = 10

Major: Mechanical Engineering

Course: ThermoDynamics

When the well-isolated office room is entered in the summer, it is seen that the temperature of the room is
35 °C. After operating the air conditioner, the temperature of the room becomes 22 °C within At minutes. The
coefficient of performance of the air conditioning system is 2.5, a) find the internal energy changing in the room
and b) calculate the electrical power consumed by the system. Assume that the whole mass inside the room is
equivalent to 700 kg of air. Take Cy = 0.72 kJ / kg°C, Cp = 1.0 kJ / kg°C for air. Use the below table for At value.
Last one digit
of your student
number
At
Win
(minutes)
15
1
14
(AC
35 °C
2
13
3
12
4
11
22 °C
5
10
7
8
8
7
9

Science that deals with the amount of energy transferred from one equilibrium state to another equilibrium state.

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