A 6-pack canned drink is to be cooled from 25°C to 3°C. The mass of each canned drink is 0.355 kg. The drinks can be treated as water, and the energy stored in the alu- minum can itself is negligible. The amount of heat transfer from the 6 canned drinks is

A 6-pack canned drink is to be cooled from 25°C to 3°C. The mass of each canned drink is 0.355 kg. The drinks can be treated as water, and the energy stored in the alu- minum can itself is negligible. The amount of heat transfer from the 6 canned drinks is

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

See similar textbooks

Similar questions

Initially saturated water liquid at 200°C is contained in a piston-cylinder. The water is then heated isothermally until its volume is 100 times larger than its initial volume. 1. Determine the increase in energy (kl/kg) of the water. 2. Determine the work transfer (kJ/kg) and indicate whether it is into or out of the system. 3. Determine the heat transfer (kJ/kg) and indicate whether it is into or out of the system. saturated water 200
Initially saturated water liquid at 200°C is contained in a piston-cylinder. The water is then heated isothermally until its volume is 100 times larger than its initial volume. 1. Determine the increase in energy (kJ/kg) of the water. 2. Determine the work transfer (kJ/kg) and indicate whether it is into or out of the system. 3. Determine the heat transfer (kJ/kg) and indicate whether it is into or out of the system. saturated water 2000 E
You are required to purchase a 3,000 L tank of liquid butane to heat a maintenance building during the winter. You are concerned about the tank rupture and the possibility of a vapour cloud explosion of all the butane. How far (in metres) must the tank be from the maintenance building to ensure that it will receive only partial demolition in the event of an explosion? The specific gravity of liquid butane is 0.6, and the energy of explosion for butane is 510 kcal/gm-mol. Assume the explosion efficiency is 10 % in this case.
A frictionless piston-cylinder device initially contains 200L of saturated liquid refrigerant-134a. The piston is free to move and its mass is such that it maintains a pressure of 900 kPa on the refrigerant. The refrigerant is now heated until its temperature rises to 70C. Calculate the work done during this process. ANS. 5571 KJA fixed mass of an ideal gas is heated from 50 to 80°C at a constant pressure of (a) 1 atm and (b) 3 atm. For which case do you think the energy required will be greater?
Consider a tube in a bike tire that has air pressurized to 16 kPa on a spring day when the temperature is 27°C. If the volume of the tube is 3.6 L, what is the mass of the air in the tire in grams? The specific gas constant for air is 287.1 L kPa K-¹ kg¹.
How many kilograms of -5 °C ice per day will melt and evaporate to steam after adding a total of 7500 kJ/hr?
During the process of raising steam in a boiler, when the pressure was 1.9 bar gauge the temperature inside the boiler was130°C and when the pressure was 6.25 bar gauge (0.625 MPa) the temperature was 165°C. If the volume of the steam space is constant at 4.25 m. Calculate the mass of steam. Steam Properties : Steam at 130°C P 2.7 bar Vg 0.6686 m3/kg 5.356 kg 4.356 kg 6.356 kg 3.356 kg
3. A rigid tank initially contains 1.4-kg saturated liquid water at 2008C. At this state, 25 percent of the volume is occupied by water and the rest by air. Now heat is supplied to the water until the tank contains saturated vapor only. Determine: (a) the volume of the tank, (b) the final temperature and pressure, and (c) the internal energy change of the water. Water 1.4 kg 200°C
A Styrofoam coffee cup contains 125 g of hot coffee at 95.0 oC. A 25.0-g ice cube at -20.0 oC is dropped into the hot coffee. After the ice melts and thermal equilibrium is reached, the resulting liquid has a temperature of 65.0 oC. The specific heat capacity of ice is 1.99 J g-1 oC-1 and that of water is 4.184 J g-1 oC-1. The heat capacity of the coffee cup is 15.0 J oC-1. Calculate the molar heat of fusion for water. Assume the coffee is essentially pure water (FW 18.015) and that no heat enters or escapes from the system.
169 g of solid water (i.e. ice), at -17 °C, is placed into a sealed, insulated container with a volume of 0.29 m^3. A 1457 W heater is used to heat and change the phase of the sample until it is a gaseous water (i.e. steam). The heater runs for 433 s. What is the pressure, in kPa, of the gaseous water in the container at the end of the heating process? Round your answer to the first decimal place.
Determine the internal energy change for carbon monoxide, in kJ/kg, as it is heated from 312° K to 1456° K, using the ideal gas properties table
A weighted piston (total masa of 17 kg)., resting on stops in a cylnder (radius of 0.05 m) divides a container into two regions. 0.075 kg of saturated liquid water at 50 Cis contained beneath the piston. The rest of the cylinder and container is evacuated. Heat is applied to the water until the piston is lifted off of the stops and moved a distance () of 0.6 m. As the piston reaches the mouth of the cylinder, the hermetic seal is broken and the cylinder contents can now expand to fil the remainder of the evacuated space. At this instant, no additional heat is added to or removed from the system. When the system fully equilibrates, its absolute pressure is measured to be 0.01 MPa vacuum y -E Cre 20 What is the state of the water when the piston begins to rise off of the stops? ? bị What is the water temperature when the piston reaches the mouth of the cylinder? c) What is the final volume of the water (after the seal is brokenj?