Thermodynamics

A 4 mole ideal gas system undergoes process in which it expands and does 20 J of work on its environment. How much energy is transferred to the system as heat?

0 J

An engine adds 75000 J of energy as heat and removes 15000 J of energy as heat. What is the engine's efficiency?

0.80

The internal energy of a system is initially 63 J. A total of 71 J of eme he is added to the system as heat while the system does 59 J of work. Wha is the system's final internal energy?

75 J

Which of the following is a thermodynamic process during which work is done on or by the system but no energy is transferred to or from the system as heat?

Abiabatic process

According to the second law of thermodynamics, the heat received by a heat engine operating in a complete cycle from a high temperature reservoir

Cannot be completely converted to work

High of th following is a thermodynamic,ic process that takes place at a constant temperature and in which the internal energy of a system remains unchanged?

Isothermal process

Which of the following is a thermodynamic process that takes place at a constant volume so that no work is done on or by the system?

Isovolumentric

A thermodynamic process occurs, and the entropy of the system decreases. What can be concluded about the entropy change in the environment.

It increases

Imagine you could observe the individual atoms that make up a piece of matter and that you observe the motion of the atoms becoming more orderly. What can you assume about the system?

It's entropy is decreasing

A chunk of ice with a mass of 1 kg at 0 degrees Celsius melts and absorbs 3.35 x 10^8 J of heat in the process. Which best describes what happened to the system?

Its entropy increased.

Work formula

W=P(delta V) Work= change in volume x pressure applied on or by a gas