Chemistry, 10.10.2019 05:10 makayladurham19
Ahouse wall which is 2.75 m high and 10 m wide is made of 110 mm thick bricks on the outside, 10 mm thick plasterboard on the inside and 100 mm thick insulation in between. on the inside of house, air conditioning keeps the surface of the plasterboard at 18°c, whereas on the outside, the surface of the brick wall is exposed to still air at 0°c. determine the rate of heat loss through the wall notes thermal conductivities of materials in wall kplasterboard 0.17 wm-1k-1, kinsulation = 0.04 wm1k-1 and kbrick = 0.72 wm1k-1 properties of air at atmospheric pressure can be found in the back of the test script (page 9) hint: start by guessing the outside wall temperature in the range of 2-4°c
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Chemistry, 22.06.2019 13:20
Can someone me with 3 and 4 plz. this is for masteries test.
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Chemistry, 22.06.2019 13:50
Abeaker with 2.00×102 ml of an acetic acid buffer with a ph of 5.000 is sitting on a benchtop. the total molarity of acid and conjugate base in this buffer is 0.100 m. a student adds 4.70 ml of a 0.360 m hcl solution to the beaker. how much will the ph change? the pka of acetic acid is 4.740.
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Chemistry, 22.06.2019 15:30
Light waves can move through , but they travel fastest when they move through a(n) .
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Ahouse wall which is 2.75 m high and 10 m wide is made of 110 mm thick bricks on the outside, 10 mm...
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