举一反三
- The coal provides energy to power the (heat) （） system of hospitals.
- Coal mining industry in Britain provides _______ of the energy consumed in the country.
- In a constant volume process for a closed system, the internal energy change of the system depends on the heat exchanged.
- In a constant pressure process for a closed system, the internal energy change of the system is equal to the sum of the heat exchanged and the work.
- Which of the following phenomena belongs to an adiabatic process ?() A: The temperature of the system remains unchanged B: The system does not absorb heat from the environment C: No heat exchange between the system and the environment D: The internal energy of the system remains unchanged
内容
- 0
In an isochoric (等容) process, all the energy added as heat remains in the system as an increase in internal energy.
- 1
The concentration of carbon dioxide is caused by_______. A: the heat accumulated in the atmosphere B: the burning of coal C: the wide use of renewable energy D: the destruction of the tropical rain forest
- 2
Heat energy and energy are the middle processes of energy transformation in an electric power plant.
- 3
What does John say about Britain’s healthcare() A: There are fewer hospitals and qualified doctors and nurses. B: Many hospitals to be built are waiting for the approval of the government. C: There are not enough doctors and nurses in the hospitals.
- 4
Heat energy and energy are the middle processes of energy transformation in an electric power plant. (chemical / mechanical)