150 joules of heat was absorbed by the surounding as 150 joules of work was done by the system. Which of the following is correct? Q is - W is - Q is +; W is - Q is +; W is + Q is -; W is +

Q: A system gains 727 kJ of heat, resulting in a change in internal energy of the system equal to +151…

A:

Q: A lead fishing weight with a mass of 57 g absorbs 146 calof heat. If its initial temperature is…

A: The given data contains, mass = 57 g. Heat Q = 146 cal. Initial temperature = 47°C

Q: What was the initial temperature (in oC) of a 38.13 g sample of aluminum (specific heat = 0.900 J/(g…

A: Given :-  Mass of substance = 38.13 g  Specific heat = 0.900 J/g.K  Heat  = -1.077 kJ  Final…

Q: which of the ff will always result in an endothermic process a. work done on the system, heaet…

A: As the reaction is endothermic means enthalpy of the reaction is positive. Means by the reaction,…

Q: The reaction between sodium metal and chlorine gas produces 822 kJ of heat energy for every chlorine…

A: Given data, Mass of Na=1.416gEnergy produced for the given reaction=822kJ

Q: ick Prep Use the References to access important values if needed for this question. -gas is…

A: According to the first law of thermodynamics, energy is neither created nor destroyed. Hence the…

Q: A gas does 135 J of work while expanding and, at the same time, absorbs 156 J of heat. What is its…

A: Given,  A gas does 135J work while expanding and absorbs 156J of heat. The change in Internal energy…

Q: A system initially has an internal energy U of 501 J. It undergoes a process during which it…

A:

Q: The temperature of 756 g of water in a calorimeterincreases from 23.2°C to 37.6°C. How much heat…

A: Given: Mass = 756g Initial temperature= 23.2oC Final temperature= 37.6oC To find: The heat given off…

Q: A vessel containing 1.000 kg of water at 25.00 °C is heated until it boils. How much heat is…

A: Given: Amount of water = 1.000 kg Initial temperature of water = 25.00 oC Boiling point of water =…

Q: A piston performs work of 217 L atm on the surroundings, while the cylinder in which it p,aces…

A: Record the given data,   Work done w = 217 L atm   Piston expands from 8L to 24 L.

Q: 4. A system absorbs 471 J of and gains 124 of energy what is the work done by the system?

A: First law of thermodynamics states that energy neither be created nor distroyed

Q: 1. ransferred from one system to another spontaneously? What is heat? How does heat differ from…

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Q: Which of the following will always result in AU > 0? O work done on the system, heat released by the…

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Q: When determining the heat capacity of the unknown metal we assumed the heat capacity of water has a…

A: When determining the heat capacity of the unknown metal we assumed the heat capacity of the water…

Q: rial typically used to heat metal radiators is water. If a 5°C, what mass of water was needed to…

A: Given data set: Specific heat of water = 4.184 J/g C Change in Temperature = 79.5 °C We need to…

Q: In the construction of bridges andskyscrapers, gaps must be left between adjoining steel beams…

A: The given problem can be solved by using the formula given below as; q=m C ∆T…

Q: If 427 J of enesgy is indirectly converted to chemical energy, which is then converted to mechanical…

A: According to the law of conservation of energy the, the energy can never be created nor be destroyed…

Q: If a system has 4.50×102 kcal of work done to it, and releases 5.00×102 kJ of heat into its…

A:

Q: The contents of the closed box in each image represent a system, and the arrows show the changes to…

A: From the first law of thermodynamics,  □U = q + w  Where, q = heat      w = work   Prodces A) q =…

Q: Which of the following which is/are true about the internal energy, E?   (i) The total energy of…

A: Internal Energy is defined as energy dissociated with the random, disordered motion of Molecules.

Q: If a 2.0 g sample of water at 5.0° C absorbs 21.8 of heat energy, what will the temperature of the…

A: given data is  q=21.8, m=2.0g  water heat capacity is 4.18J/g °c apply the formula of heat capacity…

Q: if the standard heat for hydrogen (H2) is 0, what is the ammount of energy required or released in…

A: Heat of reaction is defined as the heat required or released during a chemical reaction. According…

Q: In the laboratory a student finds that it takes 200 Joules to increase the temperature of 15.0 grams…

A: • The values provided in the question are:-    i) Mass of magnesium, m = 15.0 g  ii) Initial…

Q: 46.0 g of a mercury alloy is heated from 20.0°C to 105.°C, and absorbs 550. joules of heat in the…

A: q = mc∆T  q is heat , m is Mass , c is specific heat capacity , ∆T is the difference in temperature…

Q: If a system has 425 kcal of work done to it, and releases 5.00×102 kJ of heat into its surroundings,…

A: Convert the unit of work done to kJ:

Q: A system conducts 255 cal of heat to the surroundings whiledelivering 428 cal of work. What is the…

A: Internal energy is the energy present within the system which rises up when molecular motion takes…

Q: A system gains 767 kJ of heat, resulting in a change in internal energy of the system equal to +201…

A: Find the solution below

Q: A chemical reaction that gives off heat to its surroundings issaid to be and has a value of ΔH.(a)…

A: Exothermic reactions can be defined as a chemical reactions which are accompanied by evolution of…

Q: An automobile engine provides 623 Joules of work to push the pistons. In this process the internal…

A:

Q: 6.10)A system releases 255 cal of heat to the surroundings and delivers 428 cal of work. What is the…

A:

Q: 12. The standard enthalpy of formation, ΔHfº, for which of the following is zero? a)  F2(g) c)…

A: The difference in the standard enthalpies of formation of products and reactants gives the value of…

Q: Which of the following processes always results in an increase in the energy of a system? O The…

A: Which of the following processes always results in an increases in the energy of a system has to be…

Q: A sample of aluminum metal absorbs 9.86 joules of heat, pot which the temperature of the sample…

A: Since you have posted multiple questions, we are entitled to answer the first only.

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: Determine the ∆Esys that absorbs 12.4 J of heat and does 4.2 J of work on the surrounding in J.

A: We have to calculate ∆E (change in internal energy) According to first law of Thermodynamics ∆E = q…

Q: 2. A gas gains 15.0 kJ of heat and then performs 5.0 kJ of work. Calculate the AE of the gas.

A: FIRST LAW OF THERMODYNAMICS: Energy can neither be created nor destroyed , energy can only be…

Q: Calculate ΔE of a gas for a process in which the gas evolves 24 J of heat and has 9 J of work done…

A: Applying 1st law of thermodynamics  ΔE = q + w  where ΔE is change in internal energy , q = heat…

Q: A 763.9 g sample of hydrogen experiences a temperature change of +27.05 °C. The specific heat…

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please…

Q: If 115 cal are added to 51.4 g of solid iron, what is the change in temperature of the iron? The…

A: Given: Heat added = 115 cal Mass of solid iron = 51.4 g Specific heat of iron is 0.11 cal/goC

Q: Question 6 of 19 Consider a process where AE is -50 J and 10 J of work was done on the system. What…

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Q: A system undergoes a process consisting of the following two steps:Step 1: The system absorbs 72 Jof…

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Q: A 0.491 kg sample of an unknown metal loses 4.08 kJ of heat. If the change in its temperature was…

A: Using the formula Q=mCΔT we can find specific heat capacity.

Q: Calculate ΔU of a gas for a process in which the gas absorbs 41 J of heat and does 8 J of work by…

A: The change in internal energy of a system is denoted by ∆U. Heat absorbed by the system is denoted…

Q: The value of ΔE for a system that performs 190 kJ of work on its surroundings and gains 250 kJ of…

A:

Q: ining this experiment in the laboratory, you should be able to an estions. othermic and exothermic…

A: Given : Initial temperature = 500C Final temperature = 100C

Q: calculate heatE of a gas for a process in which the gas absorbs 25J of heat and does 7J of work by…

A: Consider the given information is as follows; Heat (q) = +25 J Work done by the system in expanding…

Q: A system produces 215 kJ of heat, and 116 kJ of work is done by it. Calculate ΔE

A: System produces or releases 215 KJ of heat. Work done by the system is 116 KJ. To calculate :- ∆E…