When 2.25 mg of anthracene, C₁4H₁0(s), was burned in a bomb calorimeter the temperature rose by 1.75K. Calculate the calorimeter constant. By how much will the temperature rise when 125 mg of phenol, C6H5OH(s) is burned in the calorimeter under the same conditions? AH combustion (anthracene) = -7061 kJ/mol

Q: A student has a coffee-cup calorimeter with 50.0 g of water at 21.5oC.  They introduce 15.525 g of…

A: The objective of the question is to find the final temperature of the magnesium metal in Kelvin…

Q: 3. 0.562 g of graphite is placed in a calorimeter with excess oxygen at 25.00 °C and 1 atm pressure.…

A: Mass of graphite = 0.562 g  Molar mass = 12.01 g/mol Moles of graphite = MassMolar mass=0.562 g12.01…

Q: When 1.0 g of fructose, C6H12O6(s), a sugar commonly found in fruits, is burned in oxygen in a bomb…

A: Given information: Mass of fructose (m) = 1.0 g Heat capacity of bomb calorimeter (Cbomb) = 9.90…

Q: A 2.821 g sample of a new organic material is combusted in a bomb calorimeter. The temperature of…

A:

Q: 6.000 g of Compound X with molecular formula C₂H4 are burned in a constant-pressure calorimeter…

A:

Q: When 50.0 mL of 1.20 M of HCl(aq) is combined with 50.0 mL of 1.30 M of NaOH(aq) in a coffee-cup…

A:

Q: Octane, C8H18, a primary constituent of gasoline, burns in air: C8H18(ℓ) + 12 1/2 O2(g) → 8 CO2(g) +…

A: The heat absorbed by water (q1) is calculated using equation (1) as follows:

Q: Solid lithium perchlorate dissolves in water according to the equation below. LiClO4 (s) ➝ Li+ (aq)…

A: Given: mass of  LiClO4 = 7.00 g mass of water = 40.0 g Initial temperature of water = 29.00 ºC…

Q: The molar mass of enthalpy of combustion of glucose, C6H12O6 is -2803 kJ. A mass of 1.00 g glucose…

A:

Q: A bomb calorimeter has a heat capacity of 6.47 kJ/K. When a 0.107-g sample of ethylene (C2H4) was…

A: Heat of combustion is the heat produced when a molecule is combusted in air and produces water and…

Q: 30.0 g H2O at an unknown temperature is mixed with 27.0 g of water at 15.8oC in a coffee-cup…

A:

Q: A 0.5865-g sample of lactic acid (HC3H5O3) reacts with oxygen in a calorimeter whose heat capacity…

A: Mass of lactic acid = 0.5865 g Heat capacity  of lactic acid , C =4.812kJ/°C Initial temperature T1…

Q: In an insulated bomb calorimeter, 0.568 g of solid citric acid (C6H&O7, molar mass 192.12 g) was…

A:

Q: When a 0.235-g sample of benzoic acid is combustion in a bomb calorimeter, the temperature rises…

A: The heat capacity of the calorimeter can be calculated using the mass of benzoic acid   Given: Heat…

Q: The standard enthalpy of combustion for cyclohexane (C6H12,l) is -3920 kJ.mol-1 at 25 °C. Use this…

A: Enthalpy of a reaction can be written in terms of enthalpy of formation of reactants and products as…

Q: Acetylene, C2H2, is a gas used in welding. The heat evolved for the combustion of acetylene is…

A:

Q: In an insulated bomb calorimeter, 0.568 g of solid citric acid (C6H8O7, molar mass 192.12 g) was…

A:

Q: 5.000 g of Compound X with molecular formula C,Hg are burned in a constant-pressure calorimeter…

A: Given that, mass of compound X  = 5.000 g Molar mass of X(C5H8) = 68.000 g/molChange in…

Q: Under a constant pressure of 1.00 atm, at 25.00oC, the combustion of 1.136 g of C6H12O3(l) raises…

A:

Q: 8.000 g of Compound X with molecular formula C4H are burned in a constant-pressure calorimeter…

A: Mass of water = 10 kg Mass of C4H8 = 8g Temperature rise = 8.755°C

Q: bomb calorimeter has a heat capacity of 2.47 kJ/K. When a 0.111-g sample of ethylene (C2H4) was…

A: Calculate the heat energy gained by calorimeter.

Q: When 1.2 g of fructose, C6H12O6(s), a sugar commonly found in fruits, is burned in oxygen in a bomb…

A: The given data contains, mass of fructose = 1.2 g Heat capacity of bomb calorimeter = 8.41 kJ/°C…

Q: The standard enthalpy of combustion of benzoic acid (molar mass 122 g/mol) is -3225 kJ/mol.…

A: In a bomb calorimeter, the heat transferred is basically the internal energy change only i.e ΔU and…

Q: A studerit runs two experiments with a constant-volume "bomb" calorimeter containing 1500. g of…

A: In an exothermic reaction, energy in the form of either heat, light or electricity is absorbed…

Q: The complete combustion of salicylic acid releases 21.90 kJ of energy per gram of salicylic acid. In…

A:

Q: A 0.565-g sample of 9,10-phenanthrenediol (C₁4H₁002) is burned in a bomb calorimeter and the…

A: In the given question we have to calculate the  for the given reaction.The formula used in the given…

Q: When 0.418 gg of pentene, C5H12C5H12, is burned in a bomb calorimeter the temperature rises by…

A: The objective of this question is to calculate the combustion energy (ΔE) for pentene, C5H12, when…

Q: A 0.5865‐g of lactic acid, CH3H5O3 , is burned in a bomb calorimeter,  whose heat capacity is 4.812…

A: ∆H is the form of energy or enthalpy which is define in kj/mol. Combustion energy is always…

Q: A bomb calorimetry experiment is performed with xylose, CSH10O5 (S), as the combustible substance.…

A: Given data, Initial calorimeter temperature T1 = 23.29 C° Final calorimeter temperature T2 = 27.19…

Q: The complete combustion of 1.200 g of cinnamaldehyde (C9H8O), in a bomb calorimeter (Cbc = 3.640…

A:

Q: When 0.418 g of pentene, C5H12, is burned in a bomb calorimeter the temperature rises by 4.21 ∘C.…

A: The mass of pentene, C5H12 burnt in a bomb calorimeter is given as .The change in temperature is…

Q: A 0.0950 mol sample of benzoic acid (C7H6O2, MM = 122.12) was combusted in a bomb calorimeter and…

A: Calorimeter constant of a Calorimeter is calculated by dividing the heat of reaction (ΔH) by the…

Q: 15.00 g of Compound X'with molecular formula C,H, are burned in a constant-pressure calorimeter…

A: Given: Mass of compound , X(C4H8) = 15.00 g  Molar mass of X(C4H8) = 56.107 g/mol Moles of compound…

Q: 6.000 g of Compound X with molecular formula C₂H4 are burned in a constant-pressure calorimeter…

A:

Q: A 2.673 g sample of a new organic material is combusted in a bomb calorimeter. The temperature of…

A: Tf = 28.80°C  Ti = 25.03° C ΔT = Tf - Ti = 28.80° C - 25.03 ° C                                =…

Q: A 3.623 g sample of a new organic material is combusted in a bomb calorimeter. The temperature of…

A: Given, The weight of sample is 3.623 g. The given temperature values are 23.53 ˚C and 30.40 ˚C. The…

Q: When 1.022 g of anthracene, C14H10, is combusted in a bomb calorimeter that has a water jacket…

A: It  involves usage of calorimetry technique to calculate enthalpy change for the reaction.…

Q: 13.00 g of Compound X with molecular formula C4H, are burned in a constant-pressure calorimeter…

A: Answer:Enthalpy change during the formation of 1 mole of a compound from its elements in their…

Q: 5) The combustion of sucrose (C12H22011, molar mass=342.3 g/mol) has a AErxn of -1.40 x 104 kJ/mol.…

A: In thermodynamics, the heat transfer is derived from the technique called as calorimetry. This heat…

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.    

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.