The sun supplies energy at a rate of about 1.0 kilowatt per square meter of surface area (1 watt=1 J/s). The plants in an agricultural field produce the equivalent of 18 kg of sucrose (C12H22O11) per hour per hectare (1 ha=10,000meters squared). Assuming that sucrose is produced by the reaction 12CO2(g)+11H2O(l)>>>C12H22O11(s)+12O2(g) ?H= 5640kJ calculate the percentage of sunlight used to produce the sucrose – that is, determine the efficiency of photosynthesis in this field. Percent efficiency = %

Q: CeH6ln + 15 O2(g)12 CO2(g) + 6 H20() AH = -5.854 x 10 kJ in unknown amount of CEH6() was combusted…

A: The question is based on the concept chemical thermodynamics.   We have been given heat value.   We…

Q: Coal-fired power plants emit CO2, which is one of the gases that is of concern with regard to global…

A: Given, $0.019 per kilowatt-hour 100,000 kWh of power per month interest rate is 12% per year…

Q: A number of companies currently lease solar panels to homeowners to offset the home’s energy use.…

A: According to Hess’s Law, when reactants are converted to products, the change in enthalpy of the…

Q: 2. A solution is prepared at 23°C by mixing 15g g of Ca(OH)2 with 2.1L of water. The density of…

A:

Q: With 0.100 g of aluminum and excess oxygen sealed in the bomb and 500 g of water in the calorimeter,…

A: Given: Mass of aluminium = 0.1 g Mass of water = 500 g Initial temperature = 20.58°C Final…

Q: The heat of combustion of carbon, hydrogen and sucrose are 394.82, -289.28 and -5665.8kj/mol resp.…

A: Heat of combustion- Amount of heat evolved when one mole of substance is completely oxidized .It's…

Q: Assume that coal can be approximated as C(s) (again, not a great assumption, but sufficient for this…

A: Let, 2 C(s) + O2(g) → 2 CO(g)                                     Delta H = -222 kJ   Reaction 1…

Q: For the scenario of 2.5 kg of water cooling from 128 oC to -14°C, calculate the total heat release…

A: Given: Initial temperature of water = 128 oC Mass of water = 2.5 Kg = 2500 g…

Q: What is qH2O? b.) What is qrxn c.) What is ΔHrxn?

A: Given 10 grams of KClO3 and dissolved it in a calorimeter containing 250 g of water. The temperature…

Q: Not every recyclable material can be recycled efficiently. Which one below may not be one of the…

A: It is true that not every recyclable materials are recycled as of the following reasons  a. The…

Q: In the laboratory a student burns a 1.13-g sample of dimethyl oxalate (C,H,04) in a bomb calorimeter…

A:

Q: Question attached

A: It is given that hexane is undergoing combustion and the enthalpy of the reaction is -4163 kJ/mol…

Q: (a) Dry red beans contain 62% carbohydrate, 22% protein,and 1.5% fat. Estimate the fuel value of…

A: (a) Calculation of fuel value of the given dry red beans: The fuel value of carbohydrate, fat, and…

Q: The following reaction using hydrogen and oxygen is carried out in a bomb calorimeter: 2H2(g)  +…

A: The given chemical reaction follows: 2H2(g)  +  O2(g)  →   2H2O(l)  Calculating the heat of reaction…

Q: Aside from reducing the use of fossil fuels and increasing the utilization of renewable forms of…

A: A question based on climate change, which is to be accomplished.

Q: A particular metallic element, S, has a heat capacity of 0.22 J/g-K and it forms an oxide that…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: An insulated container is used to hold 40.0 g of water at 34.0 °C. A sample of copper weighing 15.6…

A: Heat gained by water = heat lost by copper

Q: At 32°C, liquid Glauber's salt – sodium surface decahydrate, Na2SO4 x 10H2O(I) – solidifies amd…

A:

Q: We submerge a 32.5-g iron rod, initially at 22.7°C, into anunknown mass of water at 63.2°C, in an…

A: The heat capacity is the ratio of the energy supplied in the form of heat to the rise in the…

Q: Thermodynamic 11/11 tasks attempt A 47.5 mL solution of 0.600 M compound A is mixed with an excess…

A:

Q: How many KJ of energy are released when 6.39 g of Fe reacts with 30→2Fe₂O₂; excess O₂? Given the…

A: Given weight of Fe= 6.39g                      4Fe + 3O2 → 2Fe2O3                 ∆H= -1625kJ Mass:…

Q: The following reaction using hydrogen and oxygen is carried out in a bomb calorimeter: 2H21G) + O2g)…

A: Given: The reaction carried out in the bomb calorimeter is, 2H2g+O2g→2H2Ol The heat of the reaction…

Q: 4. The reaction of HCl(aq) and NaOH(aq) is exothermic. The equation is : HCl (aq) + NaOH (aq) NaCl…

A: Given reaction is :  HCl (aq) + NaOH (aq) --------> NaCl (aq) + H2O (l)  Volume of HCl in mL =…

Q: The enthalpy of evaporation of water is 40.67 kJ/mol.Sunlight striking Earth’s surface supplies 168…

A:

Q: Calculate the change in heat in kJ/mol of the following reaction in a bomb calorimeter: NaOH(s) +…

A: NOTE: Mass of HCl given looks incorrect and is anyway not required as the concentration and volume…

Q: Laboratory quantities of ethylene gas, CaHa(g), can be prepared by an elimination reaction of…

A: In order a reaction to proceed conversion from reactant to product, it involves some amount of heat…

Q: excess oxygen in a bomb calorimeter. The calorimeter, which alone had a heat capacity of 2.67 kJ/oC…

A: Temperature difference (□T ) = 27.95 - 24.32 = 3.63 °c Mole(n) = 1.45 /60 = 0.0242 mol  Using energy…

Q: What is the kinetic energy in kilojoules of a snail weighing 0.002981 kg and moving at a velocity of…

A: weight of snail (m) = 0.002981kg velocity (v) = 16.55 km/y =0.00052479706 = 5.25 x 10-4 m/s…

Q: A number of companies currently lease solar panels to homeowners to offset the home’s energy use.…

A: The given thermochemical equations are as follows: (1)                 2 C(s) + O2(g) → 2 CO(g)…

Q: Liquid bromine dissolves readily in aqueous NaOH: Br2(€) + 2 NaOH(aq) NaBr(aq) + NaOBr(aq) + H,O(€)…

A: Given, Br2 (l)+ 2 NaOH (aq) → NaBr (aq) + NaOBr (aq) + H2O (l) Moles of Br2 = 2.88 × 10-3 mol. Heat…

Q: A sample of liquid acetone weighing 0.700 g was burned in a bomb calorimeter for which the heat…

A:

Q: As shown suggests, the combustion of gasoline is a highly exothermic process. Let us determine the…

A: It is given that the density of isooctane is 0.692 g/mL and the amount of heat produced by 1.00 L of…

Q: A chemist wastes a delicious brownie by burning it in a bomb calorimeter.  Before burning, the…

A:

Q: A 46-kg person drinks 500 g of milk, which has a “caloric” value of approximately 3.0 kJ/g. If only…

A: The total energy is calculated as, Total energy=3.0 kJg×500 gTotal energy=1500 kJ The total energy…

Q: The total volume of hydrogen gas needed to fill the Hindenburg was 2.0 x 108 L at 1.0 atm and 25°C.…

A: Given, The balanced chemical equation, H2(g) + O2(g) ---> 2H2O P = 1.0 atm V = 2.0 x 108 L T =…

Q: ( to 292. K. nge of internal energy.

A:

Q: The Sun supplies about 1.0 kilowatt of energy for each squaremeter of surface area (1.0 kW/m2, where…

A: In a chemical reaction, two or more reactants react with each other to form a new substances. This…

Q: One day while camping, a student used a propane stove to boil some water. The student heated 5.00 L…

A: Given :  Volume of water = 5.00 L = 5000 ml  Initial temperature of water= 15.6 °C  Final…

Q: 24) A 1.50 g sample of pure sucrose is burned in a bomb calorimeter that has a heat capacity of…

A: Mass of Sucrose (m)= 1.50 g  Heat Capacity (C) = 8.930 kJ/°C Change in temperature (∆T) = 26.77°C -…

Q: The solid rocket propellant for the Space Shuttle (and Tomahawk Missiles) contain ammonium…

A:

Q: Ethanol can be most effectively mass produced by the fermentation of starches or sugars, products of…

A: * When one mole of substance burn in presence of Oxygen to generate the heat called as Enthalpy of…

Q: 6H2O + 6CO2 --> C6H12O6 + 6O2 H=+2803 kJ/mol   calculate the mass (in kg) of glucose that can be…

A:

Q: 2. Green plants utilize sunlight to convert CO2 and H2O to glucose (C,H1206) and O2. All of the…

A: Photosynthesis is a process by which CO2 is absorbed by plant to convert it into glucose using solar…

Q: Methane-producing bacteria convert liquid acetic acid (CH3CO₂H) into CO₂(g) and CH₂(g). AS° ΔΗ, Ο…

A: CH3COOH(l) = CO2(g) + CH4(g) ∆H0rxn = ∆H0f(product) -∆H0f(reactant)             = ∆H0f(CH4 +CO2) -…

Q: It is estimated that the net amount of carbon dioxide fixed by photosynthesis on the landmass of…

A: It is estimated that the net amount of carbon dioxide fixed by photosynthesis on the landmass of…

Q: A number of companies currently lease solar panels to homeowners to offset the home’s energy use.…

A: According to Hess’s Law, when reactants are converted to products, the change in enthalpy of the…

Q: A 1.000-gram sample of ethanol, C2H5OH, was burned in a bomb calorimeter whose heat capacity had…

A:

Q: Many barbeque grills use propane gas, C3H8(g) as a fuel source. Using standard enthalpies of…

A: The balanced chemical equation for the combustion of propane can be written as follows: C3H8 (g) +…

Environmental Pollution

Environmental pollution occurs due to some unwanted alteration in the surroundings which results in unfavorable effects on all organisms of that surrounding.