A chemical reaction occurs and 64.7 cal is transferred to the system. How many joules is this? is the reaction endothermic or exothermic?

Q: When 33.6 g of aluminum is warmed from 23.0°C to 28.6°C, how many calories of heat does it require?

A: The formula in which the calories will be calculated - Given data, Mass, m = 33.6 g c (Specific…

Q: If 1001 J of heat is available, what is the mass in grams of iron (specific heat = 0.450 J/g･°C)…

A: Given Heat ( Q ) = 1001 Joule  Specific heat ( s ) = 0.450 Joule/gram℃  Initial temperature ( T1 ) =…

Q: If it takes 41.72 joules to heat a piece of gold weighing 18.69g from 10.0°C to 27.0°C, what is the…

A: Given, the amount of heat taken by gold q = 41.72 joules amount of gold m = 18.69 g and increase in…

Q: Consider the vaporization of liquid water to steam at a pressure of 1 atm. (a) Is this process…

A: Vaporization is defined as the process in which liquid state is converted into the vapour state. As…

Q: A 1709 kg1709 kg car is traveling down the road at 87.0 km/h.87.0 km/h. While traveling at this rate…

A: Given that,

Q: (a) Calculate the kinetic energy, in joules of a 1200-kg automobilemoving at 18 m/s. (b) Convert…

A: a) The KE of the above process is given as the formula would be :     Ev=12mv2     we are given…

Q: ellular respiration is a process that produces energy for the cell and is about 40% efficient. If…

A: The efficiency of the process of cellular respiration is = 40 % The total energy used in cellular…

Q: Enter your answer in the provided box. A system conducts 197 cal of heat to the surroundings while…

A: Recall the following expression from first law of thermodynamics          ∆U=q + w amount of heat…

Q: What is the kinetic energy in joules of a 1030-kg automobile traveling at 86 km/h?  What is the…

A: Kinetic energy of the moving particle depend on its mass and velocity .

Q: A 1533 kg car is traveling down the road at 99.0 km/h. While traveling at this rate of speed, what…

A: Here we use the formula of kinetic energy K.E = 1/2 m* V^2 Where m = mass of car = 1533 kg V =…

Q: If a system has 49.5 J of heat added to it, and the system does 75.5 J of work on its surroundings,…

A: According to the first law of thermodynamics, the relationship between work, heat and change in…

Q: What are Endothermic Processes?

A: The endothermic processes has to be explained.

Q: A 1555 kg car is traveling down the road at 95.4 km/h. While traveling at this rate of speed, what…

A: Given  Mass of Car( m )  = 1555 Kg             Speed( v)  =  95.4 km/h  Kinetic Energy of Vehicle =…

Q: Q1:- Find the external work done by the system in kcal, when 10 kcal of heat is supplied to the…

A: ✓The First Law of Thermodynamics states that heat is a form of energy, and thermodynamic processes…

Q: The change in the internal energy of a system (ΔE) is -74 J. What is the work done when the system…

A: We have to calculate the work done.

Q: how many grams of iron

A:

Q: A 1445 kg car is traveling down the road at 96.6 km/h. While traveling at this rate of speed, what…

A: Given : Mass of car = 1445 kg Speed of car = 96.6 km/hr  To calculate :- Kinetic energy (in kJ)

Q: What is the SI unit of energy? List some other common units of energy.

A: The capacity to do work is called energy.

Q: A system absorbs 191 kJ of heat and the surroundings do 110 kJ of work on the system. What is the…

A: Given:Heat energy Q = 191 kJ.Work done on the system W = 110 kJ.

Q: a 15.0 g lead ball at 25.0 was heated with 40.5 joules of heat. Given the specific heat of lead is…

A: Given : Mass of lead = 15.0 g Initial temperature of lead = 25.0 oC Specific heat of lead = 0.128…

Q: 1. A system receives 425 J of heat and delivers 425 J of work toits surroundings. What is the change…

A: We have to calculate the change of internal energy of system.

Q: The energy absorbed by a certain system is -130 kj . If the system does 90kj of work on the…

A:

Q: Determine the change in work of a system if it undergoes -979 J of energy change and 877 J of heat…

A:

Q: In the laboratory a student finds that it takes 79.6 Joules to increase the temperature of 14.8…

A: The specific heat capacity of copper (C) can be calculated using equation (1). In this equation, m…

Q: When 435 J of heat is added to 3.4 g of olive oil at 21°C, the temperature increases to 85°C. What…

A:

Q: Hydrogen sulfide, H2S, is produced during decomposition of organic matter. When 0.6850 mol H2S burns…

A:

Q: If a system does 73.0 kJ of work on its surroundings and releases 105 kJ of heat, what is the change…

A:

Q: What are the internal energy changes, ∆E, if a system; (a.) absorbs 67 J of heat and does 67 J…

A: Answer to all the parts are given below.

Q: A 1467 kg1467 kg car is traveling down the road at 81.0 km/h.81.0 km/h. While traveling at this rate…

A:

Q: Water (2750 g ) is heated until it just begins to boil. If the water absorbs 5.55 x 10³J of heat in…

A: The amount of energy absorbed by a substance depends upon the mass of the substance, specific heat…

Q: Which one of the following is an endothermic process? A Hydrochloric acid and barium hydroxide are…

A: The energy difference of the products and reactants is known as the energy change of a reaction.

Q: Octane (C8H18) is a component of gasoline that burns according to the following equation:…

A: the enthlpy change during the combustion of 1 mole of the substance is known as enthalpy of…

Q: The gas in a piston (defined as the system) warms and absorbs 655 J of heat. The expansion performs…

A: The total heat of a system remains conserved. The system takes the heat and does the work, this…

Q: what is the mass in grams of iron

A:

Q: A gas sample does 214 J of work upon expanding and the cools, losing 34 J of heat. What is the total…

A: The first law of thermodynamics is given asΔU=Q−W, Δ U = Q − W , whereΔU is the change in internal…

Q: 900 J of heat are added to a system and 200 J of work are done on the system. What is ∆E?

A: For this problem We have to find the change in internal energy for the given condition.

Q: rogen sulfide, H2S, is produced during decomposition of organic matter. When 0.4190 mo H2S burns to…

A: Given, Heat released = -217.0 KJ

Q: An unknown substance requires 567 J of heat to increase its temperature from 0 to 15 ºC. The  sample…

A: Given, Amount of heat required (Q) = 567 J Initial temperature (Ti) = 0°C Final temperature (Tf) =…

Q: If 801 J of heat is available, what is the mass in grams of iron (specific heat = 0.450 J/g･°C) that…

A: Given data : Heat (q) = 801 J Specific heat (C) = 0.450 J/g.°C Initial temperature (Ti) = 22.5 °C…

Q: What is the kinetic energy of a 147 gram baseball moving at a velocity of 47.2 meters per second?…

A:

Q: A home swimming pool contains 155 m3 of water. At the beginning of the swimming season, the water…

A: The joules of heat energy must be supplied can be calculated as,The specific heat of water =…

Q: Chargers for cell phones get warm while they are being used. Some of the energy they are using is…

A: Given  Energy needed for charging = 235 J  Energy wasted as heat = 345 J

Q: An automobile engine provides 570 Joules of work to push the pistons. In this process the internal…

A: The relationship between the q and internal energy change and work is given by  ΔE = q + w where ΔE…

Q: If it takes 41.72 joules of heat for a piece of gold weighing 18.69 grams from 10.0oC to 27.0oC,…

A:

Q: The air in an inflated balloon (defined as the system) warms over a toaster and absorbs 115 J of…

A: According to first law of thermodynamics, energy can neither be created nor destroyed, it can only…

Q: What is the specific heat of a material when 55.2 g of it change temperature by 35.8 degrees C when…

A: Use the formula as : Amount of heat absorbs (q) = Mass of substance (w) x specific heat capacity of…

Q: When 2 mol of potassium chlorate crystals decompose to potassium chloride crystals and oxygen gas at…

A: A thermochemical equation for a given reaction can be defined as the balanced stoichiometric…

Q: 6. If it takes 44.72 joules to heat a piece of metal weighing 16.89 g from 10.0°C to 29.0°C, what is…

A: q = 44.72 J  m = 16.89 g  Ti = 10.0°C  Tf = 29.0°C  c = ?

Q: As a gas expands, it absorbs 225 J of heat and does 243 J of work to the outside. Accordingly, the…

A:

Q: The internal energy of a system increased by 982 J when it absorbed 492 J of heat. Was work done by…

A: When a system absorbs energy it means work done on the system, We know that, ∆U=982 Jq=492 J…