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 *Choose only one answer

Q: 1. Calculate the amount of heat in joules needed to completely boil 35 grams of water at 100°C.…

A: Amount of heat required by the water at 100 oC to boil or convert into steam = mass of water x…

Q: What heat transfer happens when you burn your hand by touching a fire ?

A: Heat :-  It is a form of energy that transfer  from one body to another due difference in…

Q: Average specific heat of the metal (J/g*°C)_______________  Questions  1.You assumed that the…

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

Q: How heat related to change of temperature

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

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: A metal sample of with a mass of 0.0500 kg at 100°C is placed into 0.400 kg of water at 20°C. If the…

A: Given : Mass of metal = 0.05 kg Initial temperature for metal = 100°C Mass of water = 0.400 kg…

Q: What is a calorimeter? What is a calorimeter used for?

A: A calorimeter is an object used for calorimetry, or the process of measuring the heat of chemical…

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: Select the CORRECT function of a calorimeter.

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

Q: Identifying and Calculating Energy ChangesSample Exercise 1.4Determining Density and Using Density…

A: Energy is the capacity of doing work.

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

A:

Q: Energy and Chemistry 355 Check Your Understanding 408 J of work is done on a system that releases…

A: According to the first law of thermodynamics, the change in internal energy of the system is equal…

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: 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 45-g aluminum spoon (specific heat 0.88 J/g °C) at 24 °C is placed in 180 mL (180 g) of coffee at…

A: Use calorimetry principle to get answer Heat flow from high temperature to low temperature. Heat=…

Q: A student modeled the exothermic synthesis reaction that occurs when solid iron and liquid sulfur…

A: The given reaction is exothermic in nature, i.e., it releases heat overall.

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: 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: How to compute for the amount nitrogen and oxygen present in a room

A: To calculate the amount of nitrogen or oxygen in a room, we use the ideal gas equation relating…

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

A:

Q: A sample of brass, which has a specific heat contains 200.0 g of water. The brass sample the…

A: Loss of Heat of the Metal brass = Gain of Heat by the Water -Qbrass = Q water Q = mC∆T -mC ∆T for…

Q: Define the heat capacity of liquid ?

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

Q: Data for Calorimetry Part A: Mass of Unkown metal sample = 20.331 g Mass of empty calorimeter =…

A:

Q: E thermochemical equations

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Q: The next several questions are all for one problem of putting a hot piece of metal into a coffee cup…

A: Given group of answer of choices, a. the mass times the specific heat capacity times the final…

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: Using enthaipies of formation, calculate the quantity of heat produced When 20.0 g BI Carbon…

A: Heat of reaction is difference of energy of product  and energy of Reactant. If heat of reaction 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: 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: How do heat and work affect the system and what thermochemical process are observed everyday

A: Thermodynamic processes occur in systems. The part outside the system is known as surroundings. Heat…

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: Identifying and Calculating Energy ChangesSample Exercise 1.4Determining Density and Using Density…

A: SOLUTION: Step 1: (a). We can calculate the amount of energy released from the propane as heat by…

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: Nitrogen gas and oxygen gas can combine to form nitrogen monoxide gas. Nitrogen monoxide gas can…

A: Energy taken for the reaction N + O2 ----> NO2 Is equals to the to energy taken by the two…

Q: What will be the final temperature of the water and the bomb calorimeter in this experiment?

A:

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: Chemical potential energy and simply potential energy differ because its stored energy: (select all…

A: Energy is a thermodynamic quantity that indicates the capacity to do work. There are two major types…

Q: Which of the following statements about bomb calorimetry is true? Select one: a.

A: We have to tell which option is correct

Q: enthalpy change

A:

Q: It is advantageous to use the hydrogen gas for your fuel because it gives high calorific value.

A: Interpretation : We have to tell why hydrogen for you fuel because it has high calorific value.