A 3.83 kg aluminum engine block heats up to 137.7 °C. Engine coolant at 22.5 °C is added to prevent the engine block from overheating. If the desired final temperature for optimum performance should be 66 °C, what is the required mass of coolant (in kg) that should be added?

Q: Titanium reacts with iodine to form titanium(III) iodide, emitting heat, via the following reaction:…

A: Given:

Q: Measurements show that the enthalpy of a mixture of gaseous reactants decreases by 232. kJ during a…

A:

Q: A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains…

A:

Q: 226 kJ of heat increases the temperature of 47.0 kg of copper by 12.5 ℃, what is the molar heat…

A:

Q: Molar Mass: C3H8  = 44.097  H20 = 18.015  CO = 28.010g/mol  C3H8(g) + 3H20(g) -> 3CO(g) + 7H2(g)…

A: The enthalpy for the reaction between the propane and water is calculated as shown below.…

Q: 1. A 32.07 gram sample of vanadium was heated to 75 deg. It was then dumped in which the initial…

A:

Q: A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains…

A: Since the water bath contains 9.80 kg of water at 24.2˚C and heat capacity of water is 4.18…

Q: Determine the mass of  benzene (C6H6) combusted, if 450 mL of water is heated from 20.0C to   31.0C…

A: Given,Mass of Benzene =?Volume of Water = 450 mLT2 = 31 oC and T1 = 20 oCChange in Temperature

Q: Water gas, a mixture of carbon monoxide and hydrogen, is produced by treating carbon (in the form of…

A: Given :  Mass of carbon = 5.35 kg  Since , 1 kg = 1000 gm  => Mass of carbon = 5350 gm  Also,…

Q: A 42.5 gram piece of chromium is heated to a temperature of 98.70ºC. The metal is then dropped into…

A: Mass of chromium = 42.5 g Mass of water = 36.0 g To find final temperature

Q: When 1.3 g of KClO3 was added to 151.1 g of water in a calorimeter, the temperature dropped by 0.588…

A: Given, Mass of KClO3= 1.3g Mass of water= 151.1g Temperature dropped(dT)=0.588°C  The heat capacity…

Q: When 1.34 g of KClO3 was added to 142.07 g of water in a calorimeter, the  temperature dropped by…

A: mole = massmolar mass heat = m * s * ∆Twherem = mass of solutions = specific heat of solution∆T =…

Q: A student transferred 50.0 mL 1.00 M HCl into a coffee-cup calorimeter, which had a temperature of…

A: Given: Volume of  HCl=  50.0mL Concentration of HCl= 1.00M Volume of NaOH= 50.0 mL Concentration of…

Q: 1.The combustion of methane gas, the principal constituent of natural gas, is represented by the…

A: Recall the given reaction CH4g + 2 O2g → CO2g + 2 H2Ol     ,  ∆H°=-890.3 kJ We have to find the mass…

Q: thermometer- A 56.0 g sample of aluminum is put into a calorimeter (see sketch at right) that…

A: When aluminium sample which is at higher temperature is put in calorimeter which is having water at…

Q: Determine the mass of CO2 produced by burning enough propane to produce 114 kJ of heat. C3H8(g) +…

A: Thermodynamics is branch of chemistry in which we deal with amount of heat evolved or absorbed by…

Q: A 360-g piece of rebar (a steel rod used for reinforcing concrete) is dropped into 425 mL of water…

A:

Q: A typical frostless refrigerator uses 655 kWh of energy per year in the form of electricity. Suppose…

A: Calculate the standard change in enthalpy  for the combustion of C Use standard enthalpies of…

Q: Measurements show that the enthalpy of a mixture of gaseous reactants increases by 394. kJ during a…

A:

Q: Calculate the mass of methanol when burned in oxygen (assuming complete combustion), required to…

A: The objective of the question is to calculate the mass of methanol when burned in oxygen.It is given…

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: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.69 kg sample…

A:

Q: Calculate the number of pounds of CO2 released into the atmosphere when a 10.0 gallon tank of…

A: Combustion of octane is given by: 2C_8H_{18}+25O_2\to 16CO_2+18H_2O2C8​H18​+25O2​→16CO2​+18H2​O…

Q: A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains…

A: Given: The mass of water in the water bath = 3.50 kg The initial temperature of water = 38.6 oC The…

Q: In a Calorimetry experiment, a chemical reaction causes the temperature of the solution in the…

A: The heat released can be measured by product of mass of substance with specific heat ad change in…

Q: A certain chemical reaction releases 368.kJ of heat energy per mole of reactant consumed. Suppose…

A: In case of a calorimeter we can relate the heat change of a system to the product of thenumber of…

Q: A 837837 g copper pan is removed from the stove at a temperature of 150 °C. It is then stacked on…

A: Answer Final temperature         = 193.52 K (or) -79.63 °C Formula…

Q: Measurements show that the enthalpy of a mixture of gaseous reactants decreases by 323. kJ during a…

A: The enthalpy change of the given reaction is = -323. kJ The work done by the gas mixture is =-162.…

Q: A typical frostless refrigerator uses 655 kWh of energy per year in the form of electricity. Suppose…

A: 1 KWh is equal to 3600 kilojoules. 655 KWh is equal to 655 × 3600 kilojoules = 2.358 × 106…

Q: A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains…

A:

Q: The flame in a torch used to cut metal is produced by burning acetylene (C2H2)(26.04 g/mol) in pure…

A: Given that,One mole of acetylene release heat = 1251 KJMolar mass of acetylene = 26.04g/moleThe…

Q: A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains…

A: First convert the heat and mass in J and g. Then use the formula to calculate the temperature of the…