Becker's World of the Cell (9th Edition)
9th Edition
ISBN: 9780321934925
Author: Jeff Hardin, Gregory Paul Bertoni
Publisher: PEARSON
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Chapter 5, Problem 5.2CC
How does the spontaneity of a
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Chapter 5 Solutions
Becker's World of the Cell (9th Edition)
Ch. 5 - How do phototrophs and chemotrophs depend...Ch. 5 - How does the spontaneity of a chemical reaction...Ch. 5 - QUESTION: Why does the height of the spike get...Ch. 5 - For a chemical reaction happening in a cell, what...Ch. 5 - Prob. 5.1PSCh. 5 - QUANTITATIVE Photosynthetic Energy Transduction....Ch. 5 - Energy Conversion. Most cellular activities...Ch. 5 - Problem Set Enthalpy, Entropy, and Free Energy....Ch. 5 - Violating the Second Law? The second law of...Ch. 5 - QUANTITATIVE The Equilibrium Constant. The...
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- what happens in a chemical reaction? what does activation energy (EA) mean?arrow_forwardDefine entropy and enthalpy. Do living cells increase entropy within themselves? Do they increase entropy in the environment?arrow_forwardHow can you tell if the standard Gibbs free energy given for a reaction is for chemical standard states or biological standard states?arrow_forward
- What is the most common form of kinetic energy that is released from chemical energy in chemical reactions?arrow_forwardDespite the thermal stability of covalent bonds in physiological systems, some of these bonds are sensitive to energy input from external sources. The molecule can absorb heat from the environment without changing its chemical structure, as will occur when there is a local temperature increase. If the increase in energy is above kT (i.e., the entire environment has not increased its temperature), the molecule will come to thermal equilibrium with the environment around it, and return to its original energy state. Which one of the following physiological process is example to this? Select one : a. Absorbance of light by 11-cis-retinal. b. Translucent to opaque conversion of egg whites after cooking. C. Absorbance of light by melanın. d. a & b e. a & c f.b&c g. a, b & carrow_forwardOf the three thermodynamic quantities, enthalpy, free energy, and entropy, which provides the most useful indicator of spontaneity in a reaction? Explain.arrow_forward
- Define chemical equilibrium in the context of a chemical reaction. Why is this condition not favorable in cells? How do cells act biochemically to keep their reactions out of equilibrium?arrow_forwardWhat are Reversible Reactions?arrow_forwardConsider the following process: NaCl(s) water−→−−water→ Na+(aq) + Cl-(aq); ΔH = +4.2 kJ/mol Under what conditions (temperature) would you expect this process to be spontaneous? Select a relatively high temperature and a relatively low temperature, calculate (estimate) the relative values of ΔG to support your conclusion. The entropy increases in this process Please insert an image of your workarrow_forward
- Can a process occur if the entropy of the system decreases and the enthalpy increases?arrow_forwardFor the reaction A → B at 298 K, the change in enthalpy is −7 kJ · mol−1and the change in entropy is −25 J · K−1 · mol−1. Is the reaction spontaneous? If not, should the temperature be increased or decreased to make the reaction spontaneous?arrow_forwarda) Often, we want to think about entropy as the sum of the entropy of an organism and itssurroundings. Write a version of the second law including these two entropies. b. How does this help you understand how an organism can become more ordered andstill obey the 2nd law? c. Name some spontaneous processes that increase the entropy of the surroundings whileincreasing the order in an organism.arrow_forward
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