A tank with a constant volume of 2.07 m^3 contains 15.5 moles of a monatomic ideal gas. The gas is initially at a temperature of 300 K. An electric heater is used to transfer 58400 J of energy into the gas. It may help you to recall that CV = 12.47 J/K/mole for a monatomic ideal gas, and that the number of gas molecules is equal to Avagadros number (6.022 *10^23) times the number of moles of the gas. Required:
a. What is the temperature of the gas after the energy is added?
b. What is the change in pressure of the gas?

answer: b.

explanation:

according to jean piaget, in what stage of cognitive development are children able to understand conservation task?

b. preoperational

just took it

chemical energy --> gravitational potential energy --> kinetic energy --> elastic potential energy --> gravitational potential energy

explanation:

when emma starts the hike, the chemical energy stored in her body is used to climb up the mountain, and so she gains gravitational potential energy (because at the end, she will be at a higher height h above the ground). then she goes bungee jumping: as she falls, this gravitational potential energy is converted into kinetic energy (because her speed increases as she falls down), until the point when the rope stretches, and she stops moving. at that moment, all the kinetic energy is converted into elastic potential energy due to the stretching of the rope. then, this energy is released because the rope returns to its natural length, and emma gains a small increase in altitude , so she gains some gravitational potential energy.