If electrical energy costs 12 cents, or $0.12, per kilowatt-hour, then what would the following events cost? (a) burning a 120 w light bulb for 24 h straight(b) operating an electric oven for 7.0 h if it carries a current of 20.0 a at 220 v

a)120Js¹-*24*3600=10368000J

12cents/36*10^5J*10368000J=34.56 cents

b)W=VQ.

W=VIt

W=220*20*7*3600

=110880000J

12cents/36*10^5J*110880000J

=369.6 cents

the temperature and the pressure affect solubility. temperature affects by changing the properties of the solvent. the increase in pressure increases solubility, the decrease in pressure decreases solubility.

need to see circuit to get time constant