A cobalt block was heated in a calorimeter to increase its temperature by 14.5 °C. The energy produced by the experiment was 1,950 J. What was the mass of the cobalt block? Specific Heat (CCo =0.117 J/g ° C) Your Answer:

Q: What is the specific heat in J/g°C for a metal sample with a mass of 95.6 g which absorbs 841 J of…

A: Heat, q = mass x specific heat x change in temperature.

Q: The specific heat of an unknown metal is calculated to be 3.74 J/g °C. What is the mass of the…

A:

Q: The specific heat of a certain type of cooking oil is 1.75 J/(g⋅°C). How much heat energy is needed…

A: The mass of oil and the temperature change (ΔT) is given.

Q: A 50.0 g sample of scandium, Sc, is heated by exposure to 1.50 x 10J. The temperature of the Sc is…

A: When scandium is heated then it temperature increases. Total heat absorbed by metal is calculate…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 182.0 mg sample…

A:

Q: If a system has 48 J of work done on it and absorbs 22 J of heat, what is the value of AE for this…

A: Given: Work done on the system (w) = +48 J Amount of heat absorbed = +22 J

Q: What is the minimum amount of energy required to heat 145 grams of water to the boiling point of…

A:

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 576.0 mg sample…

A: Given that, for a 576.0 mg of pure substance, 10.1 J of heat is required to raise the temperature…

Q: If 400 J of heat is given to a system and the system does 200J of work, what is the change in…

A: Answer:- This question is answered by using the simple concept of calculation of change in energy…

Q: The temperature of a 35.1 g sample of iron increases from 245 °C to 318 °C. If the specific heat of…

A: Given :-  mass of iron = 35.1 g  initial temperature = 24.5 °C  final temperature = 31.8°C  specific…

Q: The typical energy content of a pealed banana is 89 Cal per 100 grams. What volume of water can be…

A: Given:Energy in pealed banana = 89 Cal per 100 gramsVolume of water = ?Initial T = 250 CFinal T = 95…

Q: The specific heat of a certain type of cooking oil is 1.75 J/(g⋅°C). How much heat energy is needed…

A:

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: The specific heat of a certain type of cooking oil is 1.75 J/(g·°C). How much heat energy is needed…

A: Amount of heat energy required to raise the temperature of a substance is given by,

Q: The specific heat of an unknown metal is calculated to be 3.74J/g*C. What is the mass of the sample…

A: Answer is explained below.

Q: What is the kinetic energy (in J) of a 2240-pound automobile traveling at 67.8 km per hour? x 10 J

A: For an Automobile, Mass, m = 2240 pound  Velocity = 67.8 km hr-1  Kinetic Energy, Ek = ?

Q: 2. The specific heat of tin is 0.222 J/g °C. The specific heat of lead is 0.126 J/g °C. Which metal…

A: Specific heat is defined by the amount of heat needed to raise the temperature of 1 gram of a…

Q: What is the specific heat in J/g°C for a metal sample with a mass of 78.9 g which absorbs 753 J of…

A:

Q: What is the mass of an iron piece that cools from 57.8 °C to 26.4°C while releasing 7160.2 J of…

A: The working formula for this problem would be, q = m x Cp x dTwhere q is the total heat, m is the…

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: What is the mass of an iron piece that cools from 50.2 °C to 27.8°C while releasing 351.7 J of heat?…

A:

Q: 1. The temperature of 13.5g of water increased from 15.0°C to 37.0°C. How much heat was absorbed by…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: ΔE of a system

A:

Q: A 15.0-mL sample of benzene at 21.0 °C was cooled to its melting point, 5.5 °C, and then frozen. How…

A: Calculate the mass of benzene from density,

Q: The specific heat capacity of copper metal is 0.385 J/g · K. How much energy is required to heat 205…

A: The energy required to heat a solid metal is given by  Q = mCΔT  where m = mass of metal  C =…

Q: Calculate the temperature change when 7.52J of heat is released in a calorimeter having a heat…

A: Given,  Heat released = q = 7.52 J  Heat capacity of calorimeter = C = 470 J/°C  Temperature change…

Q: A block of iron weighing 207 g absorbs 1.50 kJ of heat. What is the change in temperature of the…

A: Given,

Q: 1. When 145.6 J of heat are added to 13.0 g of mercury in a thermometer, the temperature increases…

A: Here we have to determine specific heat of  mercury if 13 g of Hg absorbed 145.6 J heat energy so…

Q: A gas expands and does work on the surroundings equal to 2.17 L atm. At the same time, it releases…

A: First law of thermodynamics It states that the internal energy of a system is equal to the heat…

Q: . A car performs 6000 joules of work on its surroundings and releases 8000 joules of heat. How much…

A: (1) According to first law of thermodynamics, internal energy change, work and heat related with…

Q: The initial temperature of a 415 g sample of iron is 10.6 °C. If the sample absorbs 2.64 kJ of…

A:

Q: • The temperature of a 35.2 g sample of iron increases from 23.7 °C to 29.5 °C. If the specific heat…

A: Given:: Mass of Fe, m=35.2 g  Initial, T1=23.7℃ = (23.7 +273) K=296.7℃ Final, T2= 29.5 ℃= (29.5+273)…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 614.0 mg sample…

A:

Q: If 1495 J of heat is needed to raise the temperature of a 357 g sample of a metal from 55.0°C to…

A:

Q: The ΔE of a system that absorbs 12.4 J of heat and does 4.2 J of work on the surroundings is…

A: Recall the following expression from first law of thermodynamics            ∆E=q + wHere,change in…

Q: Calculate the temperature change when 5.76J of heat is released in a calorimeter having a heat…

A: Heat release= heat capacity* rise in temperature

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 833.0 mg sample…

A:

Q: What is the energy change of a system as it does 12 J of work and absorbed 27 J of heat?

A: To calculate the energy change of the system if the work done by the system is 12 J and it absorbs…

Q: A gas expands and does work on the surroundings equal to 4.92 L atm. At the same time, it releases…

A: Given: Work done (W) = 4.92 L atm Heat released by the system according to sign convention (q) = -…

Q: 3. How much heat is required to rise the temperature of 0.5 kg water from 30°C to its boiling point?…

A: Question 3. Given that, the mass of water is m = 0.5 kg. The initial temperature is T1 = 30oC =…

Q: The major source of aluminum in the world is bauxite (aluminum oxide). Its thermal decomposition can…

A: Thermodynamic is the branch of chemistry that mainly deals with the heat transfer between system and…

Q: A block of Iron weighing 207 g absorbs 1.50 kJ of heat. What is the change in the temperature of the…

A:

Q: If a system is given 60 J of heat and lifts the lid of the container 3 m with a force of 5 N, what…

A: Applying first law of thermodynamics and work done by system  ∆U = Q-w  &  W= F×r

Q: When 20.00 g of copper at 450.0 degrees C has 300.0 J of heat removed from it, what is the final…

A: Due to the liberation of heat temperature of copper decreases . As the heat is liberated we…

Q: When a metal object is dropped into cold water, it releases 4,715 J of energy to its surroundings,…

A:

Q: A 15.0-mL sample of benzene at 21.3 °C was cooled to its melting point, 5.5 °C, and then frozen. How…

A: Given, density of benzene = 0.80 g/mL Volume of the solution = 15.0 mL  Mass of benzene = Density x…

Q: How much energy does it take to heat 15.6 grams of aluminum metal from 25°C to 150.°C? The specific…

A: Mass of Aluminum = 15.6 grams Initial Temperature (Ti) = 25°C Final Temperature (Tf) = 150°C…

Q: If 91 J of heat is added to a pure gold coin with a mass of 15 g , what is the temperature change?…

A: