Answers: 2
Physics, 21.06.2019 23:00
Acoal-fired plant generates 600 mw of electric power. the plant uses 4.8 x 10^6 kg of coal each day, and the heat of combustion of coal is 3.3x 10^7 j/kg. the steam that drives the turbines is at a temperature of 300° c, and the exhaust water is at 37° c. (a) what is the overall efficiency of the plant for generating electric power? (b) how much thermal energy is exhausted each day? (c) what is the change in entropy of the universe for this heat engine? (d) using the same heat reservoirs, what is the maximum possible (carnot) efficiency for a heat engine?
Answers: 1
Physics, 22.06.2019 08:00
Why is it important always to use horizontal bars in unit fractions when performing unit conversions?
Answers: 3
Physics, 22.06.2019 11:20
Wave functions describe orbitals in a hydrogen atom. each function is characterized by 3 quantum numbers: n, l, and ml. if the value of n = 2: the quantum number l can have values from to . the total number of orbitals possible at the n = 2 energy level is .
Answers: 3
Physics, 22.06.2019 14:00
Often called simply "velocity," this is the velocity of an object at a particular moment in time.
Answers: 1
What is the main way in which heat transfer occurs in liquids and gases?...
Mathematics, 07.01.2021 01:00
Mathematics, 07.01.2021 01:00
English, 07.01.2021 01:00
Mathematics, 07.01.2021 01:00
Biology, 07.01.2021 01:00
History, 07.01.2021 01:00
Mathematics, 07.01.2021 01:00
Mathematics, 07.01.2021 01:00
Biology, 07.01.2021 01:00
Mathematics, 07.01.2021 01:00
Physics, 07.01.2021 01:00
Social Studies, 07.01.2021 01:00
Arts, 07.01.2021 01:00
Law, 07.01.2021 01:00