Enthalpy means ______ to promote combination of elements to form new substances or compounds: a. chemical reaction b. transfer of heat c. disorder d. all of these may be the correct answers *This is a multiple type of question

Q: A calorimeter holds 75 g water at 24.0°C. A sample of hot silver is added to the water. The final…

A:

Q: Define The Nature of Energy?

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

Q: How heat related to change of temperature

A: Heat is a form of energy that moves from hot body to cold body.

Q: Why is the amount of heat absorbed by the water not equal to the amount of heat produced by the…

A: Combustion is a exothermic chemical process in which in presence of atmospheric oxygen, molecules…

Q: A student is investigating the energy released during the combustion of different alcohols. The…

A: Given: A student is investigating the energy released during the combustion of different alcohols.…

Q: What are the factors affecting the Kinetic Energy (joules)? Why?

A: The energy possesed by body dueto its motion is known as kinetic energy.

Q: Determine at least two instances when you observed conservation of energy and/or the first law of…

A: In our everyday life, there are several phenomena taking place around us that follow the law of…

Q: A friend claims to have constructed a machine that creates electricity but requires no energy input.…

A: Energy is defined as the capacity to do work.  There are various types of energy that are present.

Q: i actually have two questions that im having trouble with. 1.) If you have 21.8 g of a metal with a…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: Energy involved in an exothermic reaction and an endothermic reaction A. If the first quantity is…

A: Given A. If the first quantity is less than the second quantityB. If the first quantity is greater…

Q: Select the CORRECT function of a calorimeter.

A: Calorimeter : It is an object used for calorimetry i.e heat measuring devices Types of…

Q: A bomb calorimeter, or a constant volume calorimeter, is a device often used to determine the heat…

A:

Q: The specific heat capacity of solid iodine is 0.427 J/g °C. Calculate the final temperature (°C)…

A:

Q: In a coffee cup calorimeter, 15.0 g sample of nickel metal is heated to exactly100 °C and dropped…

A:

Q: Select true or false for each of the following. Heat and temperature are the same thing. Energy can…

A: 1. Heat is measure of energy while temperature is measured of degree of hottness and coldness of…

Q: A 35.17 g35.17 g sample of a substance is initially at 24.4 ∘C.24.4⁢ ∘C. After absorbing 2097 J2097…

A: Given  mass (m) = 35.17g heat (q) = 2097 J T1 = 24.4°C T2 = 137.9°C

Q: A thermos bottle containing milk is shaken vigorously. Consider the milk as the system. (a) Will the…

A: a) Temperature is directly proportional to kinetic energy. When the thermos bottle is shaken, the…

Q: A 36.62 g sample of a substance is initially at 24.8 °C. After absorbing 1921 Jof heat, the…

A:

Q: How do you think a calorimetry is working? Discuss the principles below.

A: The demonstration or study of estimating the adjustments in the state factors of a body to ascertain…

Q: heat energy is required

A:

Q: Fill in the blank by the name of the definition: Heat of __________ is the quantity of heat…

A: Heat : Heat is the mode of transfer of energy from one system to another. It is due to the…

Q: How do heat and work affect the system

A: Heat and work are two unique methods of moving energy starting with one system then onto the next.…

Q: Student X accidentally broke the test tube after the calibration step. What should he do? Select…

A: Generally, calibration is referred as observed comparison of the instrument or measurement device to…

Q: A fire is started in a fireplace by striking a match and lighting crumpled paper under some logs.…

A: Fire which has been started by striking a match and lighting crumpled paper under some logs in a…

Q: For the equation H20 (I) --> H20 (s) answer the following questions: Q1) Is it endothermic or…

A:

Q: When water vapor molecules contact a cold glass surface and liquid water is formed, the energy of…

A: Given statement is :  When water vapor molecules contact a cold glass surface and liquid water is…

Q: Define the heat capacity of liquid ?

A: Physical properties, such as heat capacity, state of matter, color, conductivity, melting point,…

Q: surroundings, what is the AE for the surroundings?

A: The first law of thermodynamics is mathematically expressed as: ∆E=Q+W∆E=Q+W.............. (1) Where…

Q: An unknown mass of sand and water at 23 °C each absorb 1.95 × 10³ J of heat. The final temperature…

A: Given: Amount of heat absorbed = 1950 J Initial temperature of sand and water = 23 oC Final…

Q: In a coffee cup calorimeter, 15.0 g sample of nickel metal is heated to exactly 100 °C and dropped…

A:

Q: Show a graph and explain the relationship of temperature and calorimeter constant.

A: Show a graph and explain the relationship of temperature and calorimeter constant.

Q: Choose the INCORRECT statement. The energy stored in chemical bonds or generated from intermolecular…

A: 1. Correct statement.The energy stored in chemical bonds or generated from intermolecular forces is…

Q: The quantity of heat required to raise the temperature of a sample of a substance by 1°C is the…

A: Answer :  The quantity of heat required to raise the temperature of a sample of a substance by 1° C…

Q: ,11) [References) Use the References to access important values if needed for this question. In the…

A:

Q: e total change in energy of the

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

Q: From a thermochemical point of view, explain why a carbon dioxide fire extinguisher or water should…

A: Standard enthalpy of formation of MgO = -601.7 kJ/mol Standard enthalpy of formation of Mg(OH)2 =…

Q: Draw an enthalpy diagram for the endothermic reaction that occurs between barium hydroxide and…

A: Enthalpy diagram is a graphical representation between enthalpy of reactants and products with the…

Q: Upload a drawing: Construct a graph showing how the potential energy of the system changes as the…

A: The formula for the potential energy(U) between two charged particles is: Potential energy(U) =…

Q: Jenny says a large object, like Lake Michigan can contain significant heat energy even if it is at 0…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: Let’s say that an inventor creates a new instrument to control the temperature using the salts given…

A: Energy changes associated with physical or chemical changes as well as the heat capacity can be…

Q: You have 8.99 g sample of an unknown salt (MM = 116.82 g/mol). It is dissolved in 150.00 g water in…

A: Mass of unknown salt = 8.99 g Molar mass of unknown salt= 116.82 g/mol Mass of water = 150.00 g…

Q: What happens to the energy in the system based on the energy diagram as shown below? *

A: Interpretation : We have to tell what type of energy diagram is this.

Q: enthalpy change

A:

Q: The temperature of a Bunsen burner flame is about

A: