types of eng. required to raise the temperature of 1 lb Calculate the number of joules in a Btu. 1.42 Awatt is a measure of power (the rate of energy change) equal to 1 J/s. (a) Calculate the number of joules in a kilowatt-hour. (b) An adult person radiates heat to the surroundings at about the same rate as a 100-watt electric incandescent light bulb. What is the total amount of energy in kcal radiated to the surroundings by an adult over a 24 h period? Jncertainty in Measurement (Section 1.6) 1.43 Indicate which of the following are exact numbers: (a) the mass of a 3- by 5-in. index card, (b) the number of ounces

Q: A cook wants to heat 1.35 kg of water from 32.0oC to100.0 oC. If he uses the combustion of natural…

A: It is given that 1.35 kg of water will be heated from 32°C to 100°C using natural gas, which…

Q: (a) In an experiment, a gas contracts from 0.674 L to 0.243 L under a constant external pressure of…

A: Given - (a) Initial volume of gas = 0.674L      Final volume of gas = 0.243L      Pressure = 2.138…

Q: How much heat energy is required to raise the temperature of 0.366 kg of copper from 23.0 ∘C to 60.0…

A: The heat energy required to raise the temperature can be calculated as follows,

Q: An office heater puts out 2010 Btu (British thermal units) of energy in the form of heat per hour.…

A: Given: Amount of energy produced per hour = 2010 Btu/hr .

Q: WHAT IS THE KINETIC ENERGY OF A SINGLE ATOM OF MERCURY THAT HAS A SPEED OF 200m/s?

A: Given: Speed of atom = 200 m/s Molar mass of mercury = 200.59 g/mol

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: In a generic chemical reaction involving reactants A and B and products C and D, aA + bB»cC + dD,…

A:

Q: If the mass of a truck is tripled-for example, when it is loaded-by what factor does the kinetic…

A:

Q: How much heat energy in joules is gained by water with a mass of 491 g, and a temperature change of…

A:

Q: In the calibration of a calorimeter, an electrical resistance heater supplies 100.0 J of heat and a…

A:

Q: Calculate the kinetic energy of 0.005kg baseball traveling 25 m/s?

A: The given data is as follows: The mass of the baseball = 0.005 kg The velocity of the baseball = 25…

Q: Water heat is of 4.18j?g c° what is the quantity of energy in kJ required to increse the temperature…

A:

Q: When (3.4100x10^2) Joules of heat are added to a sample, the temperature increases from…

A:

Q: important flavor component of vanilla extract is vanillin C8H8O3 molar mass = 152.15 g/mol when…

A: Heat release by combustion = heat gain by calorimeter

Q: A 22.0 g block of copper at 45'C absorbs 2.50 kJ of heat. Given the specific heat of Cu is 0.385…

A: given :-  mass of Cu = 22.0 g  specific heat of Cu = 0.385 J/g°C  initial temperature = 45 °C  heat…

Q: Suppose that the total mass of the reactants in a chemical reaction was 100.00000 g. How many…

A: In every reaction total energy is conserved. From Energy conservation law,E=mc^2 E=energy produced…

Q: Charcoal is primarily carbon. What mass of CO2 is produced if you burn enough carbon (in the form of…

A:

Q: You serve a volleyball with mass of 2.6kg. The ball leaves your hand with a velocity of 5 m/s, how…

A: Given: The mass of the ball, (m)=2.6kg. The velocity of the ball, (v)=5 m/s.

Q: If the mass of a truck is tripled-for example, when it is loaded-by what factor does the kinetic…

A: 1) mass is tripled  2) mass becomes one fifth

Q: W AMW App Grlina Wh tab Awaap.com functions | org + func || matching function | vann digram | plant…

A: Q = mc∆T Density of water = 1g/mL  Therefore, mass of water m = 100mL *g/mL = 100g specific heat…

Q: A 36.0 g piece of copper metal is initially at 100.0°C. It is dropped into a coffee cup calorimeter…

A:

Q: the standard enthalpies of fo

A:

Q: of water. At the beginning of swimming season, the water must be heated from 20.0oC to 30.0oC. a.…

A:

Q: he density of liquid oxygen at its boiling point is 1.14 kg/L , and its heat of vaporization is 213…

A: Heat of vaporization for 1 kg of liquid oxygen = 213 kJ

Q: How much heat, in kJ, does it take to heat a 2 kg block of copper (specific heat capacity = 0.385…

A:

Q: Chicken with Cp = 0.8 BTU/lboF, is to be cooked from 30 to 120oF. a. If the chicken weighs 5 lb, how…

A: Specific heat capacity at constant pressure (Cp) is the heat required to raise the temperature of…

Q: After absorbing 1.850 kJ of energy as heat, the temperature of a 0.500 kg block of copper is 37 oC.…

A: Specific heat capacity is the amount of heat required to raised the temperature by 1 oC when heating…

Q: 840J  of heat is needed to raise the temperature of a 12-gram sample of metal from 15C to 20C, what…

A: The energy or the heat required by a given mass of a substance so as to raise its temp. by 1°C.…

Q: An office heater puts out 2030 Btu (British thermal units) of energy in the form of heat per hour.…

A: 1 day = 24 hours So, 365 days = (24×365) hours = 8760 hours

Q: When 435 Joules of heat is addesd to 3.4 grams of olie oil at 21°C, its temperature increases to…

A: Q=mC∆T Where,     Q= amount of heat (J)    m = mass of…

Q: 4. How many milliliters of water at 23 °C with a density of 1.00 g/mL must be mixed with 180 mL…

A: We know that specific heat is the amount of heat required to raise the temperature of 1 g of…

Q: A 51−kg person drinks 4.6 × 102 g of milk, which has a caloric value of approximately 3.0 kJ/g. If…

A: A 51−kg person drinks 4.6 × 102 g of milk, which has a calorific value of approximately 3.0 kJ/g. If…

Q: 1. How much heat (in joules) must be used to raise the temperature of 185 g of water from 15 °C to…

A:

Q: what is the unit, including its prefix, for 10^-6 of the derived unit for energy?

A: The ability to do work is called energy.

Q: Heat capacity is the number of joules (J) per Kelvin (K). The heat capacity was 15.080 J/K. What is…

A: Given: Heat capacity in J/K = 15.080 J/K.

Q: Calculate the specific heat of copper (Cu) in J/ °C•g if the temperature change of a 9.250 g of…

A: Applying formula is  q = mCdT  where q is heat energy, m= mass , C = specific heat , dT = change in…

Q: The specific heat capacity of water is 4.184 J/g°C and the specific heat of air is 1.006 J/g°C If I…

A: Given: The specific heat capacity of water, C​​​​​​water =4.184 J/g°C The specific heat of…

Q: km Calculate the kinetic energy of a 2.6 x 10" kg airplane moving at a speed of 0.32

A: Given :- mass of airplane = 2.6 x 104 kg               Speed = 0.32 km/s  To be calculated :-…

Q: The calorie (4.184 J) was originally defined as the quantity of energy required to raise the…

A: As per the company rules, only 3 subparts are answered.

Q: In a generic chemical reaction involving reactants A and B and products C and D, aA+bB→cC+dD, the…

A: CO  (g)  +   NH3   (g)   →    HCN   (g)   +   H2O(g) This equation is already balanced so,ΔH∘rxn  =…

Q: 10 g of a piece of metal is taken by a student to find its specific heat capacity. Metal is tied…

A: Given- Mass of metal = 10 g Volume of water = 10 ml Initial temperature of water = 25 °C Initial…

Q: 4. 23,540 J is applied to a 7kg Silver, what is its change in temperature?

A: Here we are required to find the change in temperature when 23540 J is heat is applied to 7 kg of…

Q: Suppose that the total mass of the reactants in a chemical reaction was 100.00000 g. How many…

A: Answer: This question is based on the production of energy. When a specie is converted into another…

Q: A home swimming pool contains 156 m3 of water. At the beginning of swimming season, the water must…

A: Amount of water = 156 m3 = 156000 dm3 = 156000 L = 156000 kg Increase of temperature ∆T = 10°C = K…

Q: How much heat energy is required to raise the temperature of 0.361 kg of copper from 23.0 °C to 60.0…

A: Given, Mass of copper = 0.361 kg Initial temperature = 23.0 ∘C Final temperature = 60.0 ∘C Specific…

Q: The heat capacity (specific heat) of copper is (0.0924 cal/g oC), how much energy is required to…

A: Given mass of copper = 10g specific heat of copper = 0.0924 cal/g oC ΔT = 100°C

Q: A chemist carefully measures the amount of heat needed to ralse the temperature of a 1.48 kg sample…

A: Molar heat  capacity of a substance is the change in heat when one mole of substance is heated and…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.