T = 14400 s
26.5 x 14400=381600 C
381600/96500=3.95 Faradays
Cu2+ + 2e- = Cu
3.95 faradays ( 1 mol/ 2 Faradays) = 1.97
mass = 1.97 x 63.55 g/mol=125 g
moles Au = 33.1 / 196.967 g/mol=0.168
Au+ + 1e- = Au
0.168 ( 1 Faraday/ 1mol)= 0.168 Faraday
0.168 x 96500=16217 Coulombs
16217 / 5.00=3243 s => 54 min
I Think that the answer is 15.2096 Kilograms, but I might be wrong.
Physical properties help identifying a substance and how it changes.
For example: if a substance crushes easily that means it has a low density, but if it’s hard and doesn’t crush easily, that means it has a strong high density.
And eventually the substance would not end up forming a new substance.
Look at the picture below to understand more about physical changes.
<em>the </em><em>new </em><em>volume </em><em>will </em><em>be </em><em>8</em><em>2</em><em>×</em><em>1</em><em>0</em><em>-</em><em>3</em><em> </em><em>L </em><em>or </em><em>0</em><em>.</em><em>0</em><em>0</em><em>8</em><em>2</em><em> </em><em>L</em>
Physical methods: reduce the temperature and pressure