Liquid argon boils at -186.0 °C. What is the boiling point on the Kelvin scale? A)  459.0 K B) -186.0 K C) -87.0 K D) -459.0 K E)   87.0 K

Q: 15.3 g sample of lead metal was heated to 68.2°C. This sample was placed in contact with19.2 g…

A: Given Mass of lead = 15.3 g Cp of lead = 0.130 j/g C Initital temperature of lead = 68.2 °C  Mass of…

Q: temperature

A: Dear student I have given answer to your question in the image format.

Q: 5. Fluorine (F2) and Chlorine (Cl2) both exist as diatomic molecules. Fluorine has a boiling point…

A: The potential energy curve for the Cl2 and F2 molecules is as follows:   The bond dissociation…

Q: A student boils 9.43 grams of an unknown substance into vapor. If completely vaporizing the…

A: Heat of Vaporisation :- Energy required to make vapor of a fixed amount of liquid to its vapor.

Q: In Denver, Colorado, water boils at 95  C. Explain.

A: The boiling point of any liquid is directly proportional to its atmospheric pressure.

Q: The boiling point of benzene is 80°C. Which pair of samples will have the same average kinetic…

A:

Q: 250 grams of ice, initially at -15 C, is added to coke (240

A:

Q: A sample of water at 23.9 °C required an input of 2.68 × 104 J of heat to reach its boiling point,…

A: Required heat is calculated by using below formula,

Q: A metal alloy is at -250 oC . What is the temperature on the Kelvin scale? a.  -523 K         b.…

A: °C = degree Celsius K = Kelvin We know that ; 0°C = 273 K    °C = K - 273  °C + 273 = K By using…

Q: please fast Acetone, which is used as a solvent and as a reactant in the manufacture of Plexiglas®,…

A: Given values-> Temperature = 56.1°C

Q: When changing from one state to another, what happens to particles in terms of energy? Procedure 1.…

A: Answer 5: Initial point chosen = -25oC (solid state) Final point chosen = 25oC (liquid state) The…

Q: a. K2Cr207 / Aq. H2SO4 /heat b. HNO3 / H2SO4 c. Br2 / FeBr3 d. NaOH, then H2O2 e. Sn / HCI f. NANO2…

A: In electrophilic aromatic substitution reaction, methyl group acts as ortho para directing group due…

Q: In which of the following pairs of physical changes, are both changes endothermic?   a. freezing,…

A: The answer of the above question is given in step 2

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

A: Freezing is an exothermic process.

Q: Liquid nitrogen boils at -195.8 °C. Express the boiling point of liquid nitrogen in Kelvin. A) -77.4…

A: Boiling point of liquid nitrogen = -195.8 °C  Boiling point of liquid nitrogen in kelvin = ?

Q: Q5: A bottle of soda at room temperature 22"C is placed in a refrigerator where the temperature is 7…

A:

Q: Which change occurs to cause water to boil into steam? O The addition of thermal energy causes the…

A: Water molecule are held together by a electrostatic force called hydrogen bonding . Due to hydrogen…

Q: Which change occurs to cause water to boil into steam? O The addition of thermal energy causes the…

A: Option first is the correct answer.  The addition of thermal energy causes the motion of water…

Q: Question 43

A: Temperature is a measure of the average kinetic energy of the particles of a substance. The higher…

Q: 24. List three common units for measuring temperature.

A: Temperature is the measure of the heat present in the substance. We use the definite units to…

Q: 10. How many grams of water (c=4.18 J/g-C) can be taken from 4°C t8 97 2133 JUUle 11. A 33.54 gram…

A: The heat of a reaction is the amount of energy released or absorbed during the course of a reaction.…

Q: 24. The graph to the right represents the uniform cooling of a substance, starting with the…

A: When we cool the gas, it converts into a liquid state. On further cooling the liquid converts into…

Q: The specific heat of a substance is the amount of heat needed to O change 1 g of the substance from…

A: The answer to the following question is given as -

Q: A 115.4 g sample of water absorbs 97.48 kJ of heat. If its initial temperature is 7°C, what will the…

A:

Q: What is the temperature at Standard Temperature and Pressure (STP)? O 273 K O OK O -273 K -273 °C

A: STP Term is given  Temperature at STP = ?

Q: 1.219 Joules converted to cal

A: We know, 4.184 Joule = 1 Cal Or. 1 Joule = (1/4.184) Cal = 0.239 Cal

Q: The specific heat of aluminum is 0.214 cal/g·oC. Determine the energy, in calories, necessary to…

A: The specific heat of aluminium is = 0.214 cal/(g·oC) The mass of aluminium is = 55.5 g The increase…

Q: The boiling point of sulfur is 444.6°C. Sulfur’s melting point is 593°F lower than its boiling…

A:

Q: You may want to reference (Pages 80 - 87) Sections 3.6-3.7 while completing this problem. A 143-g…

A: Given information, Mass of sample (m) = 143 g  Initial temperature (T1) = 100°C  Final temperature…

Q: Directions: Read the passage below and answer the question(s) that follow. Directions: Use the…

A: There are three phases of matter. The phase of matter can be interchanged by changing the…

Q: calorimeter at 45.0°C. The final temperature of the water A piece of copper is placed in 75.0 g of…

A: The mass of water is = 75.0 g The initial temperature of the water is = 45.0oC The final temperature…

Q: 4. How many kilojoules are required at 0°C to melt an ice cube with a mass of 25 g? 5. How many…

A: 4.) We would use heat of fusion of ice to calculate heat .  5.) First we would Calculate heat…

Q: b My Questions | bartleby 101 Chem101 app.101edu.co Submit Question 7 of 29 Which one of the…

A: Exothermic reactions are those in which heat is liberated from the system whereas, in endothermic…

Q: 10 Temperature (°C) CHAPTER 5 MULTIPLE-CHOICE QUESTIONS Questions 1-5 use the following information.…

A: We are given the heating curve of a substance as follows:

Q: how much heat must be lost to change 35 grams of gaseous water into ice form 155 degrees celsius to…

A: Given- heat be lost to change 35 grams of gaseous water into ice form 155 degrees celsius to -65…

Q: What is the specific heat of a metal that has a mass of 12.9 g, and absorbs 301 cal of heat when the…

A: Specific heat- It is the amount of heat required to raise the temperature of 1g of substance by 10…

Q: Sample 1 Food coloring dye spreads slowly in a sample of water Sample 2 Food coloring dye spreads…

A: Rate of diffusion of dye in water is directly proportional to temperature. Higher the temperature,…

Q: Q5: A bottle of soda at room temperature 22"C is placed in a refrigerator where the temperature is 7…

A:

Q: If chart B represents the cooling of a 14.0 g of a substance at a constant rate, determine the…

A: Specific heat capacity of substance is  defined as the heat capacity of  sample of the substance is…

Q: Stage 1 Stage 2 Stage 117 GAS LIQUID-GAS 100 - LIQUID 85 Heat absorbed- (5.) enpiodwel

A: The basic concept is that when any substance is heated, the particles gain energy and thus start…

Q: The solidification temperature of mercury is -39ºC. On the Kelvin scale, this temperature…

A: Given data: Solidification temperature of mercury = -390C On the temperature scale O0C = 273.15K

Q: f you put salt water in an open container under the sun, the water evaporates leaving the salt…

A: ANSWERE IS DISCUSSED BELOW :

Q: Consider the following two processes as described below: 1. The old fashioned hand cranked ice cream…

A: The given two processes cab be related based on lowering of freezing point (or melting point) that…

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: Water has a high specific capacity; this means that it takes a lot of energy to change the…

A: Specific heat capacity is defined as the amount of heat required to increase the temperature of 1 g…

Q: WHICH OF THE FOLLOWNG PHYSICAL PROCESSES IS EXOTHERMIC? A. BOILING OF WATER B. MELTING OF ICE…

A: WHICH OF THE FOLLOWNG PHYSICAL PROCESSES IS EXOTHERMIC? BOILING OF WATER, MELTING OF ICE…

Q: If 3.00 kJ of heat is supplied to a 0.880 mol sample of solid copper at 25.0°C, what will the…

A: Thermodynamic is the branch of chemistry that mainly deals with the heat transfer between system and…

Q: 1. On Figure 1, write the name of each process in the appropriate blank on the diagram (choose from…

A: Matter can be changed from one state to another state by the application of heat energy (absorbed…

Q: A sample of water at 16.0 °C required an input of 1.97 × 104 J of heat to reach its boiling point,…

A: Heat absorbed, Q = 1.97 × 104 J Change in temperature = 100.0 °C - 16.0 °C = 84 °C Specific heat…

Q: he temperature at 6:00 am was - 1.8°F the temperature change over the next 12 hours was 35.7°F the…

A: Temperature at 6:00 am was = -1. 8°F