A heating curve for water has been provided below. F A G D C Time Based on this graph, answer the following questions: Q1) Is this graph an endothermic or exothermic graph and why? 02) Explain what is happening to the water molecules at segment D in detail. Temperature

Q: The temperature at which all molecular motion stops. a. absolute zero b. boiling point c. Boyle's…

A: Absolute Zero- The minimum temperature (that can be theoretically achieved), at which the motion of…

Q: 1. How much heat is needed to raise the temperature of 125.0 grams of water by 12.0 °c? C AT

A: Q = M*C*∆T  Q = heat absorbed. M = mass of the sample. 125g C = specific heat. 4.18 ∆T = change in…

Q: Choose all of the processes from below which describe changes which are independent of the path by…

A: a) The given process is independent of the path.    b) The given process is dependent of the path.…

Q: When 50 g of ethanol is heated from T1 below its freezing point to a temperature T2 above its…

A: The amount of heat energy required for raising the temperature from one particular temperature to…

Q: A professor has a beaker full of pure water. She heats the water to it's boiling point of 100°C.…

A: Colligative Properties: Which depends upon the number of the solute particles irrespective to the…

Q: Is freezing an exothermic process or endothermic process? Explain how you are experimentally…

A: Freezing is an exothermic process.

Q: Name: Class Dare For each property of matter below, write the name of the property ond whether it is…

A: Physical property is the property of a substance which is observed by without changing its…

Q: The main reason that distillation is a costly method for purifying water is the high energy required…

A:

Q: 115. This molecular drawing shows images of acetone mol- ecules before and after a change. Was the…

A: Physical properties are the properties of a compound which can be measured and determine the state…

Q: An 85.0 g piece of copper is heated to 98.7 degrees C.The copper is then quickly put in to water…

A: Answer:- This question is answered by using the simple concept of calorimetry which states that heat…

Q: B2. Graphing the heating curve for water 120 100 80 60 40 20 15 20 25 0. 10 Time (Min) °C B3.…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: The warmest temperature ever measured in the United States is134 °F on July 10, 1913, in Death…

A: The given temperature is 134°F.

Q: PLS ANSWER THE FOLLOWING QUESTIONS

A: The solution is given below -

Q: a 44 gram piece of ice at 0 degrees celsius is added to a sample of water at 6.8 degrees celsius.…

A: The mass of ice is = 44 g The mass of water sample =? The temperature of ice is = 0 degrees celsius…

Q: You burn a 0.6 g jellybean to warm 13 g of water, which increases the temperature of the water 2 °C.…

A:

Q: 140 120 100 80 60 40 20 20 60 80 100 120 Time (min) Answer the following question for the heating…

A: (c) Process of Boling is represented by letter "d". As per the graph temprature remains constant in…

Q: Ty + 54 3.1 V. TA

A: Given Information- Boiling point of liquid werewolf blood= 32.0 oA Freezing point of liquid…

Q: Think about what you already know about different phases of matter. Given this figure showing the…

A: Matter exists in three states such as solid, liquid, and gas.  The conversion of one state to…

Q: How much heat is absorbed by 68 g of ice when it melts? The heat of fusion of ice is 80. cal/g and…

A: 1) Mass of Ice is (m)=68 g 2) The heat of fusion of ice is (L)=80 cal/g

Q: There are ___________ degrees Fahrenheit between thefreezing and boiling points of water.

A: The number of degrees (in Fahrenheit) between freezing point of water and boiling point of water.

Q: Iculate the amount of heat needed to melt 123. g of solid acetic acid (HCH,CO,) and bring it to a…

A: Calculation as shown below

Q: 31) H,O, H", heat OH

A: Benzene diazonium salts gives phenol in presence of H2O.H+ Again phenol undergoes coupling reaction…

Q: 2. Note on the graph the temperature at which all of the ice has melted and the temperature at which…

A:

Q: what are the states of matter of the temperature´s

A: States of matter are mainly 3 types  i) Solid ii) liquid iii) Gas These phase transition depends on…

Q: 1. A quart of boiling water will cause a more severe burn if it's spilled on you than just a drop of…

A:

Q: A 45.0 mL sample of water is heated to its boiling point. How much heat is required to vaporize it?…

A: Given volume of water is--- 45.0mL Density of water is --- 1.00g/mL How much heat is required to…

Q: How much heat is absorbed by 77 g of ice when it melts? The heat of fusion of ice is 80. cal/g and…

A: Given that heat of fusion = 80 cal/g mass of ice = 77g

Q: 5. Seawater can be made into drinking water by boiling the seawater, collecting the steam, and con…

A: Given that : Sea water can be made into drinking water by boiling the seawater, collecting the steam…

Q: .The amount of energy involved in melting a substance without changing its temperature is called the…

A: We know that, A) heat of vaporization: it is the amount of energy require to convert liquid into…

Q: 1. What phase is happening in section #1? a. Temperature is b. Energy is 2. What change is happening…

A: Hi, since you have posted mutliple subpart questions, we will answer the first three questions for…

Q: How much heat, in joules and in calories, must be removed from 1.75 mol of water to lower its…

A: Formula used: Q=mcΔT  C = 1.00cal/g∘C  or  4.186J/g∘C moles of water to grams…

Q: 8. What temperature change will result if 600.0 grams of water absorb 1200.0 calories of heat ? M.…

A: According to the law of calorimetry Heat absorbed or released by a system is given by the following…

Q: Which of the following needs greater quantity of heat for 1 kg of water? a. freezing it b. Freezing…

A:

Q: 5. A 500.0-g iron bar at 212°C is placed in 2.0 L of water at 24°C. What will be the change in…

A: Here, we need to answer the 5th Question which allows us to calculate the change in temperature of…

Q: Calculate the amount of heat needed to melt 119. g of solid benzene (C.H) and bring it to a…

A: The total amount of heat needed in this transition is the sum of heat needed in two different…

Q: 12. Which picture shows an example of a chemical change taking place? LORV A B C

A: To determine which of the below picture shows chemical change.

Q: Round your answers to the correct number of significant figures. Only use numbers in your answer.…

A: Conversion of temperature into Kelvin scale: -173°C=-173+273.15K=100.15 K127°C=127+273.15K=400.15 K

Q: On your paper, draw the cooling curve for SO2 starting at -50 °C and ending at -100 °C. At each…

A:

Q: E. Evaluate Trections: Study each situation, Write Pifthe picture shows physical chan C for chemical…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub- parts for…

Q: What are the physical states of the compound that exist between the indicated letters in the chart…

A: A to B the compound must be in solid states .

Q: What is occurring in section C? B C temperature (°C) forening D BONG Cat time (minutes) OA.…

A: We are given a Temperature(oC) versus Time(min) graph for the conversion of an unknown material from…

Q: 1 Select the correct answer. What changes occur at the molecular level when butter melts in a hot…

A: We have select the correct answer. What changes occurs at the molecular level when butter melts in a…

Q: A man makes breakfast He puts some toast in the toaster and mixes some eggs with a milk As he begins…

A: Given: Burning of a toast. Digestion of food. Burning of gas. And straining of orange juice.

Q: Which is not a physical property of chlorine? The color of gaseous chorine is green. Chlorine…

A: A physical property is any property that is measurable without changing the composition of matter.…

Q: The amount of heat needed to raise 50.0 grams of water from 20.0 degree Celsius to 30 degree Celsius…

A: Given : mass = 50 grams Temperature T2 = 30oC Temperature T1 = 20oC ∆T=T2-T1         = 30 - 20…

Q: True or false: write true if the statement is correct and write false if it is wrong. A. Average…

A: Average kinetic energy of a gas is directly proportional to the temperature of the gas in kelvin.…

Q: Use the data in the table to plot a heating curve of temperature versus time for a 180-g sample of…

A: Heating curve is a graphical representation of changes that occur in the physical state of a…

Q: What is the heat, q , required to melt 10 grams of ice in a) Joules b) calories

A: