What is the change in enthalpy in kilojoules when 2.30 mol of Mg is completely reacted according to the following reaction 2 Mg(s) + O2(g) → 2 MgO(s) AH = -1204 kJ

Q: Sulfur dioxide gas reacts with oxygen to form sulfur trioxide in an exothermic reaction according to…

A: Given mass of SO2 = 58 g

Q: What is the change in internal energy of a system if the system (a) absorbs 58 J of heat and does 58…

A: Given information, (a) System absorbs 58 J of heat and does 58 J of work (b) System absorbs 125 J of…

Q: if 0.0102 moles reacted and 476.5 J of heat were absorbed by the reaction in a coffee cup…

A:

Q: For the reaction, N2(g) + 2 O2(g) ➞ 2 NO2(g) , the enthalpy change is 33.9 kJ/mole of NO2 formed.…

A: Enthalpy is a thermodynamic property which is an extensive additive property we are required to find…

Q: Given the thermochemical equation, calculate the heat evolved (in kJ) when 118 g of SO2 (molar mass…

A: Given: The thermochemical reaction is as follows: 2SO2  +  O2 ------> SO3              H=-198…

Q: For which one of the following is the enthalpy of the reaction the same as the enthalpy of…

A: Enthalpy of fornation :-  The enthalpy change involved in the formation of 1 mole of a compound from…

Q: What is the change in internal energy for a system if the system absorbs 537 kJ of heat and does…

A: We have given that  Heat absorbed by system =q= 537KJ  Work done by system is always negative   W =…

Q: C 2H 5OH() + 30 2( g)→ 2CO 2( g) + 3H 20( ) AH=-1.37 x 10 3 kJ I. The reaction is endothermic II.…

A: Exothermic reaction is the reaction in which energy is released in the formation of products while…

Q: When 0.828 g of sodium metal is added to an excess of hydrochloric acid, 8610 J of heat are…

A: Given data,Mass of Na=0.828gHeat=8610JMolar mass of Na=23g/mol

Q: What is the change in enthalpy in kilojoules when 3.24 g of CH;OH is completely reacted according to…

A: Given   The mass of methanol is 3.24 g. The value of enthalpy change is 252.8 kJ.

Q: What is the change in internal energy when a system is heated with 35 J of energy while it does 15 J…

A:

Q: Suppose that the molar enthalpy of a reaction is -17.41 kJ/mol and 1.49 x 106 joules of heat are…

A: The following formula is valid to solve for the answer of the given question. ∆H=qn where, '∆H' is…

Q: Question attached

A: Given, The combustion reaction of Acetone- C3H6O + 4 O2 → 3 CO2 + 3 H2O  The energy of the above…

Q: 1. Calculate the change in the internal energy of the system for a process in which the system…

A: "To get remaining sub-parts solved please repost the complete question and mention the sub-parts to…

Q: Describe how chemists use Hess’s law to determine the ΔH°f of a compound by measuring its heat…

A: To find: How the Hess's law used to determine the ΔH°f of a compound by measuring its heat…

Q: Consider a reaction occuring in a calorimeter. The heat produced by this reaction is symbolized by…

A: A calorimeter is used for measuring the heat of a chemical reaction. In calorimeter, an exothermic…

Q: A scientist measures the standard enthalpy change for the following reaction to be 7.8 kJ : Fe(s) +…

A: Consider the given information is as follows; Fes  +  2 HClaq   →   FeCl2s   +   H2g…

Q: The standard heat of formation, AH, is defined as the enthalpy change for the formation of one mole…

A: Dear student , since you have posted multiple questions we will allow to solve only first question…

Q: What is the change in internal energy for a system which loses 422 J of heat, and on which 227 J of…

A: According to first law of thermodynamics the change in internal energy is expressed as shown below:

Q: What is the change in internal energy (in J) of a system thatabsorbs 0.615 kJ of heat from its…

A: The relation between change in energy, heat, and work is given as: ∆E=q+w

Q: A scientist measures the standard enthalpy change for the following reaction to be -14.6 kJ :…

A: The expression for the enthalpy change is:

Q: If the complete reaction of 45.0 g of B(s) requires 74.93 kJ of heat to be absorbed from the…

A:

Q: For which one of the following substances is the standard enthalpy of formation, AHf, equal to zero?…

A: Answer: option b: lead [Pb(s)]; having standard enthalpy of formation (∆Hf), equal to zero.

Q: What is the change in internal energy for a system that performs 213 kJ of work on its surroundings…

A: Given, System performs 213 KJ of work on its surrounding And system loses 79 KJ of heat in the…

Q: The enthalpy change for Photosynthesis can be represented as the following thermochemical equation.…

A: Photosynthesis is the chemical process where the plant absorbs sunlight and converts into a glucose…

Q: If 800 J of heat is added to a system when it does 500 J of work, what is the change in internal…

A:

Q: A scientist measures the standard enthalpy change for the following reaction to be -819.0 kJ :CH4(g)…

A: The given reaction is, Standard enthalpy of formation of CH4(g), O2(g) and H2O(g) is given below,

Q: The standard enthalpy of formation of hydrogen chloride gas, HCI(g) is -92.31 kJ/mol. Write the…

A: The objective of the question is to write the thermochemical equation to represent formation of…

Q: Ammonia reacts with oxygen according to the equation: 4NH3(g)+5O2(g)→4NO(g)+6H2O(g)ΔHrxn=−906kJ…

A: The required balanced chemical equation is given below.

Q: Given the following thermochemical equation: 4NH3(g) + 502(g) Calculate the enthalpy change when…

A: Ammonia reacts with oxygen to form nitrogen oxide and water. The equation for the balanced chemical…

Q: Consider the following reaction in a vessel with a moveable piston. R (g) + T (g) -> X (g) As the…

A:

Q: When 0.670 g of sodium metal is added to an excess of hydrochloric acid, 6970 J of heat are…

A: moles= mass/molar mass 2 Na(s) + 2 HCl(aq)-----> 2 NaCl(aq) + H2(g)                  Or  Na(s) +…

Q: A scientist measures the standard enthalpy change for the following reaction to be -56.0 kJ:…

A: Formation enthalpy of the reactants and products (except water)  is collected from internet,since…

Q: 1. Why is it necessary to indicate the physical state of all reactants and products when giving the…

A: Enthalpy change of the reaction (ΔHrxn) is the amount of energy change during a chemical reaction.

Q: 10) For which of the following substances is AH°f, the enthalpy of formation, equal to zero? a)…

A: Standard enthalpy of formation for an element will be zero if the element is present/formed in their…

Q: For a process, 153 J of heat was released by the system and 267 J of work was done on the system.…

A: Thermodynamics is branch of chemistry in which we deal with heat absorbed and heat released in to…

Q: The value of AH° for the reaction below is 128.1 kJ CH OH -CO, + 2H 2(g) 2(g) (1) How may kJ of heat…

A: CH3OH ---> CO2(g) + 2H2(g)       ΔH0 = 128.1 kJ 128.1 kJ of heat is consumed when 2 mol of H2 is…

Q: A scientist measures the standard enthalpy change for the following reaction to be -67.6 kJ :…

A: The expression for the calculation of change in enthalpy is shown below: where; ∆Hproducts =…

Q: What is the change in internal energy for a system if the system absorbs 322 kJ of heat and has…

A: Given that,  Heat absorbed by the system q = 322 KJ Work done on the system w = 750.0 KJ

Q: A scientist measures the standard enthalpy change for the following reaction to be -737.2 kJ :…

A: 2CO (g) + 2NO (g) → 2CO2 (g) + N2 (g) The standard enthalpy change for the reaction is : - 737.2 KJ…

Q: When 1.42 g of iron reacts with 1.80 g of chlorine, 3.22 g of FeCl2(s) and 8.60 kJ of heat is…

A: Iron reacts with chlorine to form iron(II) chloride. When 3.22 g of FeCl2s is formed, 8.60 kJ of…

Q: What is the change in enthalpy in kilojoules when 3.24 g of CH,OH is completely reacted according to…

A:

Q: The combustion of propane is represented by the following reaction: 50 21g) 3CO2(8) 4H2O(g) 2043 kJ…

A: The balanced reaction taking place is given as, => C3H8 (g) + 5 O2 (g) ---------> 3 CO2 (g) +…

Q: In the following reaction, how many moles of CH,0H are required to give off 3791 kJ of heat? 2 CH,OH…

A:

Q: A scientist measures the standard enthalpy change for the following reaction to be -48.4 kJ:…

A: Data taken using appendix are  standard enthalpy of formation of CaCl2(s) = -795.4 kJ/mol standard…

Q: What is the change in enthalpy in kilojoules when 3.24 g of CH,OH is completely reacted according to…

A: Conversion factors are the numerical values which are used to convert one physical quantity to…

Q: Given the following thermochemical equation: 4NH3(g) + 502(g) → 4NO(g) + 6H20(g) AH = -906 kJ…

A: Ammonia reacts with oxygen to form nitrogen oxide and water. The equation for the balanced chemical…

Q: Charcoal is primarily carbon. What mass of CO2 is produced if you burn enough carbon (in the form of…

A: The mass of CO2 produced when 5.4 x 102 kJ of energy is produced is calculated as,

Micelles and Biological Membrane

Micelles are the type of lipid molecules that organize themselves in spherical shape in aqueous solutions. The production of the micelle is a reply to the amphipathic behavior of fatty acids. It means that they consist of both hydrophobic regions and hydrophilic regions. In micelles, polar head groups (hydrophilic groups) produce an outer layer associated with water whereas nonpolar tails (hydrophobic groups) are organized in the interior.