Question

? https://uic.blackboard.com/webapps/assessment/take/launch.jsp?course_assessment_id=_27811_1&course_id=_17257_1&content_id=_667006_1&step=null Take Test: Q-ME121 Save All Answers Close Window QUESTION 1 2 points Save Answer A 3 m wall has cross-sectional area of 1 m² and thermal conductivity of 5 W/mK, specific heat capacity of 200 J/kg.K, and density of 2000 kg/m². What is the thermal resistance across the wall (K/W)? QUESTION 2 3 points Save Answer In Question 3, what is the temperature on the left side of the wall (in °C)? Question Completion Status QUESTION 3 3 points Save Answer Air is flowing on both sides of a wall (of thickness 2 m and 0.5 W/mK) at different conditions. The air flowing on the left side of the wall is at 100 °C, and the convection heat transfer coefficient is 7 W/m²K. The air flowing on the right side of the wall is at 20 °C, and the convection heat transfer coefficient is 20 W/m²K. Assuming that heat transfer occurs only in 1D, across the wall of area 2 m², what is the heat flux across the wall ($ QUESTION 4 2 points Save Answer Match the material with the major contributing of its thermal conductivity Metal A Non-Metal B A. Electrons B. Phonons Click Save and Submit to save and submit. Click Save All Answers to save all answers.

          ?
https://uic.blackboard.com/webapps/assessment/take/launch.jsp?course_assessment_id=_27811_1&course_id=_17257_1&content_id=_667006_1&step=null
Take Test: Q-ME121
Save All Answers
Close Window
QUESTION 1
2 points
Save Answer
A 3 m wall has cross-sectional area of 1 m² and thermal conductivity of 5 W/mK, specific heat capacity of 200 J/kg.K, and density of 2000 kg/m². What is the thermal resistance across the wall (K/W)?
QUESTION 2
3 points
Save Answer
In Question 3, what is the temperature on the left side of the wall (in °C)?
Question Completion Status
QUESTION 3
3 points
Save Answer
Air is flowing on both sides of a wall (of thickness 2 m and 0.5 W/mK) at different conditions. The air flowing on the left side of the wall is at 100 °C, and the convection heat transfer coefficient is 7 W/m²K. The air flowing on the right side of the wall is at 20 °C, and the convection heat transfer coefficient is 20 W/m²K. Assuming that heat transfer occurs only in 1D, across the wall of area 2 m², what is the heat flux across the wall ($
QUESTION 4
2 points
Save Answer
Match the material with the major contributing of its thermal conductivity
Metal
A
Non-Metal
B
A. Electrons
B. Phonons
Click Save and Submit to save and submit. Click Save All Answers to save all answers.

?
https://uic.blackboard.com/webapps/assessment/take/launch.jsp?courseassessmentid=278111 courseid=172571 contentid=6670061 step=null
Take Test: Q-ME121
Save All Answers
Close Window
QUESTION 1
2 points
Save Answer
A 3 m wall has cross-sectional area of 1 m² and thermal conductivity of 5 W/mK, specific heat capacity of 200 J/kg.K, and density of 2000 kg/m². What is the thermal resistance across the wall (K/W)?
QUESTION 2
3 points
Save Answer
In Question 3, what is the temperature on the left side of the wall (in °C)?
Question Completion Status
QUESTION 3
3 points
Save Answer
Air is flowing on both sides of a wall (of thickness 2 m and 0.5 W/mK) at different conditions. The air flowing on the left side of the wall is at 100 °C, and the convection heat transfer coefficient is 7 W/m²K. The air flowing on the right side of the wall is at 20 °C, and the convection heat transfer coefficient is 20 W/m²K. Assuming that heat transfer occurs only in 1D, across the wall of area 2 m², what is the heat flux across the wall (QUESTION 4
2 points
Save Answer
Match the material with the major contributing of its thermal conductivity
Metal
A
Non-Metal
B
A. Electrons
B. Phonons
Click Save and Submit to save and submit. Click Save All Answers to save all answers.

Added by Nicole R.

Question

Please give Ace some feedback