Consider a system consisting of an ideal gas confined within a container、one wall of wh the gas in the form of heat by immersing the container in ice water. energy can be added aside, the internal energy of the gas is reduced by the amount of work done the internal energy of an ideal gas is directly proportional to its absolute temperature t learning goal: diagram and the quantities q, w, and δu so the absolute temperature t is directly proportional to the prodact of the absolute pres is an expressice of con of energy. this law states that changes in the first law of the internal energy of a system au can be explained in terms of energy transfer into or out of the system in the form of heat q and or work w. is this problem, we will write the first law of thermodynamics as a pv diagram figure 1) is a convenient way to track the pressure and volume of a syste diagram) to another. work corresponds geometrically to the area under the curve on a pl the system, thereby reducing its internal esergy you will determine the mzes ofthese energy transfers and classify their effect otthe system as energy訓or energ) our what is the sign of alu as the system of ideal gas goes from point a to point b on th o the internal energy of the system increases, so au is posstive 。the internal energy of the system decreases, so ais negative 

Follow these directions and answer the questions. 1. shine a pencil-thin beam of light on a mirror perpendicular to its surface. (if you don't have a laser light as suggested in the video, you can make a narrow beam from a flashlight by making a cone from black construction paper and taping it over the face of the flashlight.) how does the light reflect? how does the relationship of incident to reflected ray relate to the reflection of water waves moving perpendicular to a barrier? 2. shine a pencil-thin beam of light on a mirror standing on a sheet of paper on the table (or floor) so that you can mark the incident ray and reflected ray. (you can support the mirror from the back by taping it to a wooden block.) 3. mark a line on the paper representing the reflective surface. (the reflective surface of a mirror is usually the back edge.) 4. draw a dashed line perpendicular to the mirror surface at a point where the incident and reflected ray meet. this perpendicular is called a normal to the surface. 5. measure the angles between the rays and the normal. the angle of incidence is the angle formed by the incident ray and the normal to the surface. the angle formed by the reflected ray and normal is called the angle of reflection (r). what is the angle of incidence? what is the angle of reflection? 6. repeat for several different angles. (see report sheet for details.) what appears to be the relationship between the angle of incidence and angle of reflection? in science 1204, what was the relationship for these two angles made by the reflection of waves in a ripple tank? 7. roll a ball bearing so that it hits a fixed, hard surface (a metal plate) at several angles (including head-on). observe the way in which the ball bearing reflects. what generalization can you make about how a ball bearing reflects from a wall? have you proved that light can only behave like a wave?

Describe the function of the endomembrane system? what organelles are involved?

Which best describes the first law of thermodynamics as compared to the second law of thermodynamics? a. the first law describes how thermal energy is conserved but not the direction it moves. b. the first law describes the direction thermal energy moves but not how it is conserved. c. the first law describes how thermal energy can be created but not how it can be destroyed. d. the first law describes how thermal energy can be destroyed but not how it can be created.