The temperature should be calculated in ? for the given system. Concept introduction: The temperature for any reaction can be easily obtained using Gibb’s equation: Δ G 0 = Δ H 0 − T Δ S 0 Where H is enthalpy, T is temperature and S is entropy of the reaction. Further the change in enthalpy and entropy for reactions are obtained as: ΔH 0 = ∑ ΔH f(products) 0 - ∑ ΔH f(reactants) 0 ΔS 0 = ∑ ΔS 298(products) 0 - ∑ ΔS 298(reactants) 0

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3. 2. 1. On the graph below, plot the volume of rain in milliliters versus its height in centimeters for the 400 mL beaker. Draw a straight line through the points and label it "400 mL beaker." Volume (mL) 400 350 300 250 200 150 750 mL Florence Volume Versus Height of Water 400 mL beaker 100 50 0 0 2 3 4 5 Height (cm) 6 7 8 9 10 Explain why the data points for the beaker lie roughly on a straight line. What kind of relationship is this? How do you know? (see page 276 text) the design of the beaker is a uniform cylinder the volume of liquid increases evenly with its height resulting in a linear relationship. What volume would you predict for 10.0 cm of water? Explain how you arrived at your answer. Use the data table and the graph to assist you in answering the question. 4. Plot the volume of rain in milliliters versus its height in centimeters for the 250 mL Florence flask on the same graph. Draw a best-fit curve through the points and label it "250 mL Florence flask." oke came

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Chapter 20, Problem 44QAP

Interpretation Introduction

Interpretation:

The temperature should be calculated in ? for the given system.

Concept introduction:

The temperature for any reaction can be easily obtained using Gibb’s equation:

ΔG0=ΔH0−TΔS0

Where H is enthalpy, T is temperature and S is entropy of the reaction.

Further the change in enthalpy and entropy for reactions are obtained as:

ΔH0=∑ΔHf(products)0-∑ΔHf(reactants)0ΔS0=∑ΔS298(products)0-∑ΔS298(reactants)0

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3. 2. 1. On the graph below, plot the volume of rain in milliliters versus its height in centimeters for the 400 mL beaker. Draw a straight line through the points and label it "400 mL beaker." Volume (mL) 400 350 300 250 200 150 750 mL Florence Volume Versus Height of Water 400 mL beaker 100 50 0 0 2 3 4 5 Height (cm) 6 7 8 9 10 Explain why the data points for the beaker lie roughly on a straight line. What kind of relationship is this? How do you know? (see page 276 text) the design of the beaker is a uniform cylinder the volume of liquid increases evenly with its height resulting in a linear relationship. What volume would you predict for 10.0 cm of water? Explain how you arrived at your answer. Use the data table and the graph to assist you in answering the question. 4. Plot the volume of rain in milliliters versus its height in centimeters for the 250 mL Florence flask on the same graph. Draw a best-fit curve through the points and label it "250 mL Florence flask." oke came

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In the video, we looked at the absorbance of a certain substance and how it varies depending on what wavelength of light we are looking at. Below is a similar scan of a different substance. What color BEST describes how this substance will appear? Absorbance (AU) Violet Blue Green Orange 1.2 1.0- 0.8- 0.6- 0.4- 0.2 0.0 450 500 550 600 650 700 Wavelength (nm) violet indigo blue green yellow orange red Red O Cannot tell from this information In the above graph, what causes -450 nm wavelength of light to have a higher absorbance than light with a -550 nm wavelength? Check all that are true. The distance the light travels is different The different data points are for different substances The concentration is different at different times in the experiment Epsilon (molar absortivity) is different at different wavelengths