Question

Watch the video titled “Heat and Temperature Introduction” (2 min 30 sec) under the Temperature and Heat terms section of the Science Corner. You can also view the video at https://www.youtube.com/watch?v=v1zOnyC4RgQD. Next, describe the fundamental differences and similarities between temperature and heat. Then, analyze how heat transfer occurs during the processes of conduction and convection. Provide one (1) example of where each occurs in natural physical systems. Watch the video titled “USGS Gas Hydrates Lab” (6 min 44 sec) under the Gas Hydrate terms section of the Science Corner. You can also view the video at https://www.youtube.com/watch?v=U46XOoU0DrM#t=12. Next, explain the main reasons why pressure and temperature play a critical role in the stability of gas hydrates. Identify at least two (2) situations where methane hydrate deposits predominantly occur and discuss the key challenge(s) in locating and harvesting methane hydrate under each situation. Suppose it is a very hot summer day and you want to cool your kitchen. Unfortunately the windows and doors in your kitchen cannot be opened. You have either a fan or a refrigerator to cool the kitchen. Which do you believe would be more effective to cool the room? Explain your answer.

Answer 1

For the video titled “Heat and Temperature Introduction", the temperature is indepente of the mass of the substance, temperature measures the kinetic energy of the substance, whereas heat is a measure that depends of the mass of the substance, heat measures the temperatura (kinectic energy) and the mass of the substance. The conduction heat example in the natural physics systems is when cold ice of an iceberg cools the water around it to reach the thermal equilibrium. And the convection process is when the cold air cools the hot air.

The most efecty method is open the freezer and put the fan close to the freezer because by convection the cold air of the freezer cools the air room. Only the fan isnt effective because there isnt air flux

For the second video “USGS Gas Hydrates Lab” the principal components of the gas hydrates are methane, ethane and other hydrocarbures that are gases at standard conditions, then to be in solid pahes is necessary high pressures and low temperatures. One situation must be the in sediments of the polar seas, and the other situation is in a cold planet under great mountains by the high pressure. In the first situation the challenge is go to the bottom of the sea, and in the second is travel to other planets.