Chapter 2, Problem 13PIAT

select which ones are examples of potential energy

You and a friend are eating dinner together, and a number of events occur during your dinner that call to mind the Laws of Thermodynamics. Match each event to the most relevant Law of Thermodynamics. Your food is cooked on a propane grill, which converts the chemical energy from propane and oxygen into the heat used to cook the food, First Law of Thermodynamics Second Law of Thermodynamics Your meals arrive, and your friend enjoys eating her steak, which contains chemical energy that will be converted into other forms of chemical energy within her body. After the meal, you go for a walk. The chemical energy from dinner will help generate ATP to fuel the skeletal muscles used for walking. The waiter brings a basket of bread, but as you eat it crumbs are scattered on the table. Your glass of water falls off the table and breaks into many pieces.

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Imagine puffer fish swimming towards north at an angle of 90 In which habitat does it survive happily? What is effect of change in internal energy of liver of puffer fish due to global warming? Comment on above statement by keeping in view the first law of thermodynamics.

State the first and second laws of thermodynamics, and discuss the implications of these laws as they relate to organisms.

The existence of life is dependents on bioenergetics to overcome the restrictions of thermodynamics. What does the term bioenergetics mean? Provide one well-structured example of how bioenergetics provides the necessary conditions required for life to exist given the restrictions of thermodynamics.

Which of the following is true of thermodynamically spontaneous reactions? O A. They are all energy-yielding They are all energy-consuming They all result in an increase in the temperature of the system They all result in a decrease in the temperature of the system В.

this one represents an endothermic reaction. Things are similar: the flat line on the left (beginning of the reaction) is the total energy possessed by the reactant molecules; once again, kJ stands for energy in kiloJoules, thousands of Joules. The flat line on the right (reaction complete) is the total energy of the products. Since an endothermic reaction has a net absorption of energy (taking this extra energy from the surroundings), the products have higher energy than the reactants. Question: the energy of the reactant molecules is kJ. [to answer, simply identify the correct y-axis coordinate.] 250 200 PE (kJ) 150 100 50 Reaction pathway

A certain chemical reaction releases 134. kJ of heat energy per mole of reactant consumed. Suppose some moles of the reactant are put into a calorimeter (a device for measuring heat flow). It takes 3.11 J of heat energy to raise the temperature of this calorimeter by 1 °C. Now the reaction is run until all the reactant is gone, and the temperature of the calorimeter is found to rise by 9.7 °C. How would you calculate the number of moles of reactant that were consumed? Set the math up. But don't do any of it. Just leave your answer as a math expression. Also, be sure your answer includes all the correct unit symbols. moles consumed = ولا 0x10 DO 0