Which of the following processes is/are endothermic?
1. | the combustion of hydrogen | |
2. | the condensation of water | |
3. | the evaporation of isopropyl alcohol |
a. |
1 only |
|
b. |
2 only |
|
c. |
3 only |
|
d. |
1 and 3 |
|
e. |
1, 2, and 3 |
Which of the following processes is/are endothermic? 1. the combustion of hydrogen 2. the condensation of...
Which of the following statements is true? A. the evaporation of sweat is an endothermic process in which ?H > 0 B. all combustion reactions are exothermic processes in which ?H > 0 C. it takes more thermal energy to raise the temperature of 1g of metal than of 1g of water D. Hess's Law is an extension of the Law Of Multiple Proportions E. the freezing of water to form ice is an endothermic process in which ?H...
Which of the following processes have a As<0? a. water freezes b. isopropyl alcohol condenses C. methanol (g, at 555 K) methanol (g, at 400 K) d. carbon dioxide (g) carbon dioxide (s) e. All of the above processes have a As<0.
Part 1: Multiple-choice questions (2 points each) - Which of the following steps or processes in aerobic respiration DIRECTLY consumes molecular oxygen (O2)? a. Glycolysis. b. Oxidative decarboxylation of pyruvate. c. The citric acid cycle. d. Oxidative phosphorylation. Beta-oxidation. 2- Gluconeogenesis is a(n) pathway. a condensation. b. catabolic c.) anabolic d. amphibolic e. photosynthetic 3. Because it is a degradative pathway that also generates biosynthetic precursors, the citric acid cycle is an) pathway. a. condensation. b) catabolic c. anabolic d....
#1 #2 #3 Classify each of the following processes as exothermic or endothermic. 1. The dissolution of NaOH in water causes the water to become warm. 2.When an instant ice pack is activated, it becomes cold to the touch. 3.In the combustion of propane, a bright flame is produced 4.2H2(g) + O2(g) → 2H2O(g) + 483 kJ/mol How much energy is required to produce 4.67 g. C6H1206(s)? (The molar mass of C6H1206 is 180.16 g/mol.) |6C02(g) + 6H2O(g) + 2801...
1. Which of the following is true of the processes that occur during fatty acid synthesis? a. The second step uses NADPH to form an alcohol. b. The forth step uses NADPH to reduce a C=C double bond, thus forming a saturated acyl molecule attached to the ACP. c. The third step removes a water molecule to form a C=C double bond d. All of these are true. e. An immediate product of the condensation reaction is a beta-ketoacyl group...
can you check my answers 1. Which of the following steps or processes in aerobic respiration DIRECTLY consume molecular oxygen (O2)? a. Glycolysis. b. Oxidative decarboxylation of pyruvate. c. The citric acid cycle. d. Oxidative phosphorylation Beta-oxidation 2- Gluconeogenesis is a[n) pathway a condensation. b. catabolic (c) anabolic d. amphibolic e. photosynthetic 3. Because it is a degradative pathway that also generates biosynthetic precursors, the citric acid cycle is an) pathway. a. condensation 6 catabolic c. anabolic d. amphibolic e....
28) How many moles of water are produced during the combustion reaction of 1.0 moles of isopropyl alcohol (C3HgO, rubbing alcohol)? A) 4 B) 8 C) 1 D) 6 E) none of the above
Determine whether each of the following is exothermic or endothermic and indicate the sign of?H. a. natural gas burning on a stove b. isopropyl alcohol evaporating from skin c. water condensing from steam Indicate the sign of ?H. Which one is positive and which one is negative
Question 6 1 pts Which one of the following processes is endothermic? O Steam condenses to liquid water. O Propane gas burns in a gas grill. O Liquid sodium freezing to a solid O Water evaporates from your skin after stepping out of the shower O Water freezes to form ice.
Which of the following processes have a ΔS < 0? Select all that apply a. ethanol freezes b. 2-propanol (g, at 555 K) → 2-propanol (g, at 400 K) c. isopropyl alcohol condenses d. carbon dioxide(g) → carbon dioxide(s)