The units for s, the specific heat of the water in the calorimeter, are J/(gK) The units for ΔT can be °C. Explain why the difference in units is accepptable

Q: A system does 551 kJ of work and loses 236 kJ of heat to the surroundings. What is the change in…

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Q: A 5.52E1 g sample of water at 9.973E1 °C is placed in a constant pressure calorimeter. Then, 2.32E1…

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Q: A scientist measures the standard enthalpy change for the following reaction to be -133.0 kJ :…

A: Given;

Q: A piston compresses the air in the cylinder by doing 84J of work on the air. As a result, the air…

A: Given,  What is change in internal energy = ΔU = ?

Q: The value of ∆E for a system that gains 115kJ of work from the surroundings and loses 79 kJ of heat…

A: The value of ∆E for a system that gains 115kJ of work from the surroundings and loses 79 kJ of heat…

Q: A system does 516 kJ of work and loses 256 kJ of heat to the surroundings. What is the change in…

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Q: A gas is warmed and gains 48J of heat. The gas expands as it is heated and work is done by the…

A: Answer : We have to calculate energy ,work and heat . Explanation :   Since gas is warmed so system…

Q: If 7.92x10^4 of heat are required to raise the temp of 220.3 g of a substance from 332K to 442K what…

A: Amount of heat = 7.92 × 104 Joule Mass of substance = 220.3 gram Initial Temperature, T1 = 332K…

Q: The standard heat of combustion of propanol, C3H7OH, is 2021 kJ/mol. How much heat would be…

A: Number of moles of any substance can be calculated by dividing the mass of the substance with its…

Q: A chemical reaction in a bomb calorimeter evolves 5.17 kJ of heat. If the heat capacity of the…

A: Given, the heat evolved, q = 5.17 kJ Heat capacity, c = 1.08 kJ/°C Temperature, ΔT = ? The formula…

Q: Assume that a particular reaction evolves 244kJ of heat and that 35kJ of PV work is gained by the…

A: Given that: Heat evolved (q) = -244 kJ (negative sign indicate that heat is released) P∆V = -35 kJ…

Q: Consider two 50.0 mL volumes of water, one at 20.0 °C and the other at 100.0 °C. What is the heat…

A: Given, Volume of water in two separate Container = 50 mL Temperature of one of the water = 20◦c…

Q: Based on this value and the standard enthalpies of formation for the other substances, the standard…

A: Standard enthalpy of formation is the change in enthalpy that accompanies the formation of one mole…

Q: A system does 566 kJ of work and loses 216 kJ of heat to the surroundings. What is the change in…

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Q: The correct units for the molar heat capacity are: O a) J/mol/°C O b) J/g Oc) J d) mol/°C

A: Molar heat capacity of a substance is the amount of heat required to rise the temperature of one…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 130.0 mg sample…

A: The question is based on the concept of specific heat capacity.   amount of heat required to raise…

Q: A scientist measures the standard enthalpy change for the following reaction to be 2885.4 kJ:…

A: 6CO2 (g)  + 6 H2O (l)  ---> C6H12O6 (s) + 6 O2 (g)  ∆Hrxn  = 2885.4 KJ/mol ∆H°f H2O = ?

Q: 300J of heat is added to the  system and 180 J of work is done by the system through expansion. How…

A: Given that: Heat added to the system (q) = 300 J Work done by the system (w) = -180 J Internal…

Q: During a certain chemical reaction 1,395 J of heat is released from the system and 360 J of work is…

A: Given :-  work done on surrounding = 360 J  heat released from system = 1395 J  To be calculated :-…

Q: 5. The enthalpy change for the oxidation of naphthalene, C10H8, is AH =-5156kJ /mol C1, H) +120e)…

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Q: A balloon is inflated with air from an initial volume of 1.44E-1 L to 2.16E0 L against an external…

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Q: Find the standard enthalpy of formation of ethylene, C2H4(g), given the following data:

A: The given problem relates to Hess's law, which states that the amount of heat evolved or absorbed in…

Q: standard enthalpies c

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Q: When 23.6g of calcium chloride, Was dissolved in water in a constant pressure calorimeter, the…

A: For heat capacity ,heat and temperature ,there is a relation for all: q=c×△TWhere:q= Heat…

Q: What is the change in internal energy of a system that absorbs 600 KJ of heat energy at the same…

A: Given,  a system that absorbs 600 KJ of heat energy at the same time does 450 KJ of work. Therefore,…

Q: Calculate the change in the internal energy for a certain process if 800 J of work is done on the…

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Q: . Calculate the work done on or by a system that absorbs 260 kJ of heat experiences a change in…

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Q: A-Compare between random errors and systematic errors B. Calculate the amount of heat for a system,…

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Q: What is the change in internal energy (in J) of a system thatreleases 675 J of thermal energy to its…

A: Thermodynamics is the branch of chemistry which deals with the study of heat and other forms of…

Q: A system gains 617 kJ of heat, resulting in a change in internal energy of the system equal to +161…

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Q: A system absorbs 455 J of energy and at the same time 514 of work was done on it. What is the change…

A: Consider the given information is as follows; Q (amount of heat absorbed) = + 455 J Work done on the…

Q: ) Write an equation for the combustion of 1 mol of pentane gas, C5H12(g), to form carbon dioxide gas…

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Q: Explain the difference between the change in internal energy and the change in enthalpy of a…

A: Change in internal energy (∆U): Internal energy is the sum of Potential energy and the work done of…

Q: A system gains 612 kJ of heat, resulting in a change in internal energy of the system equal to +181…

A: Given,Heat gain (Q)=612kJChange in internal energy(∆U)=181kJ

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 412.0 mg sample…

A: The molar heat capacity of a compound is defined as the amount of heat required to raise the…

Q: 1. Find the change in the internal energy when 175 J of work is done on a system that evolves 50 J…

A: Given:Heat (q) = 50 J        Work (W) = 175 J since, work is done on the system which means energy…

Q: What is the change in the internal energy of the system if the surroundings releases 300J of heat…

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Q: The standard enthalpy of combustion of anthracene is -7163 kJ mol-1. Use this value, along with the…

A: The energy released or the enthalpy generated due to the complete combustion of a particular…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 566.0 mg sample…

A: The amount of heat required to increase the temperature of one kilo gram of a substance by one…

Q: In an isolated system 1000 J of heat is added to an ideal monatomic gas, while the gas performs 500…

A: From data Q= +1000J (positive as it is positive in case of heat is added to system as per chemistry…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 242.0 mg sample…

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Q: A student burnt 0.40 g of ethanol using a calorimeter filled with 150 cm³ of water and noted a…

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Q: Write an equation that expresses the first law of thermodynamics in terms of heat and work.

A: The First Law of Thermodynamics states that energy can be converted from one form to another with…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 567.0 mg sample…

A: amount of heat needed q = m x S x ∆T  where  q = 11.6 J  m = mass of sample = 567 mg x 10-3 g/1mg =…

Q: A system receives 425 J of heat and delivers 425 J of work toits surroundings. What is the change in…

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Q: The standard molar enthalpy of formation for oxygen gas, O2(g), is zero. The enthalpy of formation…

A: Molar enthalpy of formation of a substance is the energy required or released when one mole of a…

Q: A system initially at 1.50L changes its volume under an external pressure of 0.988atm while…

A: Given data:

Q: If a system has 5.00×102 kcal5.00×102 kcal of work done to it, and releases 5.00×102 kJ5.00×102 kJ…

A: Given Data : Work done (w) = 5.00 × 102 kcal heat (q) = 5.00 × 102 kJ

Q: Calculate the standard enthalpy change for the fermentation process, in which glucose (C6 H12 O6 )…

A: The standard enthalpy change for fermentation process has to be calculated. The balanced chemical…

Q: A system gains 667 kJ667 kJ of heat, resulting in a change in internal energy of the system equal to…

A: According to the first law of thermodynamics; Consider the given information is as follows;…