Question 9, part a: Ideal gas, van der Waals gas, reversible work, and entropy.One mole of N2 is held at 310 K in a 10.0 L container. Use a = 1.39 atm L^2 mol^-2 and b = 0.0391 L mol^-1 for N2. Use R = 0.08206 L atm mol^-1 K^-1 or R = 8.314 J mol^-1 K^-1 as appropriate. Then the gas expands reversibly and isothermally to 25.0 L. After that, at constant volume, it is heated from 310 K to 450 K. Treat N2 as an ideal diatomic gas for heat-capacity calculations, with Cv = (5/2)R.Part a (5 points). Calculate the ideal-gas pressure at 310 K and 10.0 L.

What happens during the catagen phase of the hair growth cycle?

What is the function of the hair cuticle?

What is considered when analyzing hair to achieve desired results?

Question 11, part b: Kinetics, Arrhenius temperature dependence, and enzyme kinetics.A reaction A -> products followed in a cuvette with fluorescence spectroscopy is first order with k = 0.0960 min^-1. The rate constant triples when the temperature increases from 298 K to 310 K. An enzyme reaction that catalyzes the same reaction A -> products has Vmax = 0.240 micromol s^-1 and Km = 0.0500 mM.Part b (5 points). Calculate the time required for [A] to decrease to 12.5 percent of its initial value.

Question 10, part d: Metal calorimetry and heat capacity.A 64.2 g metal sample is heated to 98.0 degrees C and then placed into 75.0 mL of water initially at 21.5 degrees C. The final temperature of the metal-water system is 27.2 degrees C. Assume the density of water is 1.00 g/mL and Cs,water = 4.184 J g^-1 K^-1.Part d (5 points). Calculate Cs,metal when the calorimeter heat capacity is ignored.

How long can the anagen phase of the hair growth cycle last?

Reading comprehension question 2:True or False: Los platos de comida de España y México son similares.

COMPOSITION Choose ONLY ONE of the following two prompts and indicate which of the two you have selected in your response.    OPTION 1: Un día en el parque regional. Imagine that you are on vacation and right now you are looking out from the window at a cabin. Using the present tense, describe what you see at the camp site (see the picture below), and what the people do and you do at the regional park. Make sure to provide the names of the people in the photo. You need to have 8-10 sentences and use at least 7 verbs from the list.  Total points: 12 points.  Grammar 6 pts., Vocabulary 4 pts., Organization 1 pt., Creativity 1 pt. = 12 points.   Some verbs that you can use: leer / llevar / nadar /practicar / salir / ser / tener / tomar / trabajar / visitar / viajar / vivir / beber / caminar / cocinar / comer / correr / descansar / dormir estar / gustar / hacer / ir / jugar If you need to apply an accent mark or special character, please copy and paste it from the following list: á  é  í  ó  ú  ñ  ü   ilustration for SPAN101 final – composition with names.png ******************************************************************************************************** Choose ONLY ONE of the following two prompts and indicate which of the two you have selected in your response.     OPTION 2: Soy un(a) compañero(a) ideal. Imagine that you are going to start your first semester at UMBC, University of Maryland Baltimore County, and you are looking for an apartment near the university. Finally, you find one! For this writing section of your final, you will write an email to your future roommate about yourself. Your email needs to be short. You need to have 8-10 sentences and use at least 7 verbs from the list.  Total points: 12 points.  Grammar 6 pts., Vocabulary 4 pts., Organization 1 pt., Creativity 1 pt. = 12 points.   Organize your email in a way that it answers and/or includes the prompts or questions below: • ¿Quién eres?: your name; place of origin; age; what do you study; where do you live   • ¿Cómo eres?: physical characteristics; personality traits.   • Mis gustos: your favorite (2-3) activities or likes on the weekend.   • Mi comida: your favorite food, places to eat.     Some verbs that you can use: / salir / ser / tener/ tomar / trabajar / visitar / viajar / vivir    beber / caminar / cocinar / comer / correr / estar / estudiar / gustar / hacer / ir / jugar / leer / nadar / practicar    If you need to apply an accent mark or special character, please copy and paste it from the following list: á  é  í  ó  ú  ñ  ü    

Question 10, part e: Metal calorimetry and heat capacity.A 64.2 g metal sample is heated to 98.0 degrees C and then placed into 75.0 mL of water initially at 21.5 degrees C. The final temperature of the metal-water system is 27.2 degrees C. Assume the density of water is 1.00 g/mL and Cs,water = 4.184 J g^-1 K^-1.Part e (5 points). Explain the sign of qmetal.