Does all the ice melt calorimetry? Once all the ice has melted, the temperature of the liquid water rises, absorbing heat at a new constant rate. At 100oC the water begins to boil….Heat and Change in Physical State. Substance Mercury Melting Point (oC) –38.9 ΔHfus, (J/g) 11.8 Boiling Point (oC) 357 ΔHvap (J/g) 272 When […]
What happens to pressure if volume decreases in gas?
What happens to pressure if volume decreases in gas? Explanation: Gas particles exert pressure by colliding with the walls of their container. If you reduce the volume, you are effectively increasing the density of the particles and they will collide with the walls more frequently, leading to an increase in pressure. Why does the volume […]
What is the latent heat of fusion of ice of 2 grams?
What is the direction of magnetic field in a bar magnet?
What is the direction of magnetic field in a bar magnet? Magnetic field lines are defined to have the direction that a small compass points when placed at a location. (a) If small compasses are used to map the magnetic field around a bar magnet, they will point in the directions shown: away from the […]
Which is the most common type of synthetic polymer?
Which is the most common type of synthetic polymer? Low-Density Polyethylene What are the 5 uses of nylon? Uses of Nylon Clothing – Shirts, Foundation garments, lingerie, raincoats, underwear, swimwear and cycle wear. Industrial uses – Conveyer and seat belts, parachutes, airbags, nets and ropes, tarpaulins, thread, and tents. It is used to make a […]
Does the Fermi level depend on temperature?
Does the Fermi level depend on temperature? The experiment shows that the Fermi level decreases with increasing temperature and has almost the same temperature dependence as the energy gap. It is pinned at about 0.63 of energy gap below the conduction band. How is Fermi level calculated? You can use our Fermi level calculator to […]
Where is most energy found in a food web?
Where is most energy found in a food web? The vast majority of energy in food webs originates from the sun. Energy is not recycled in ecosystems and each ecosystem requires a continuous input of energy to sustain it. There is some energy transformed at each level of the food chain or food web in […]
Which system will lift the weight most easily?
Which system will lift the weight most easily? pulley system Where do you see pulleys in everyday life? Examples of Pulleys in Everyday Life Elevators. Elevators work via a powerful electronic pulley system. Wells. Exercise Machines. Construction Pulleys. Theater Systems. What are examples of pulleys in your house? Examples of pulleys that can be found […]
Can nuclear waste be destroyed?
Can nuclear waste be destroyed? It can be done. Long-term nuclear waste can be “burned up” in the thorium reactor to become much more manageable. Where does nuclear waste go? More than a quarter million metric tons of highly radioactive waste sits in storage near nuclear power plants and weapons production facilities worldwide, with over […]