El trabajo realizado cuando se comprime un gas en un cilindro, como el que se muestra en la siguiente figura, es de 462 J. Durante este proceso hay transferencia de calor de 128 J del gas hacia los alrededores. Calcule el cambio de energía para este proceso.

How does a sample of helium at 15 degree celsius compare to a sample of helium at 215 k? a) the helium at 15 degrees celsius has a higher average kinetic energy that the sample at 215 k. b) the helium at 15 degrees celsius has lower nuclear energy that the sample at 215 k. c) the helium at 15 degrees celsius has slower- moving atoms that the sample at 215 k. d) the helium at 15 degrees celsius has smaller atoms than the sample at 215 k.

Ajar contains a certain substance. which observation would show that the substance must be either a solid or a liquid?

Which of the following reasons best explains why a scientist would want to replicate gregor mendel's pea plant experiment? a. to discover new aspects of the natural world b. to test the predictions of current theories c. to explain recently observed phenomena d. to test the conclusions of prior investigations