Calculate the mass (in grams) of O2 that isproduced by photosynthesis when 2.49 × 104 kJ of solar energy is consumed.

Q: Write balanced equations for each of the processes described below. (Use the lowest possible…

A: Answer: Given reactions are radioactive decay reactions where nucleus of atom is transforming either…

Q: Given the thermochemical equation for photosynthesis, calculate the solar energy required to produce…

A: The following formula is applied to solve for the answer. ∆H=En where, '∆H' is the molar enthalpy of…

Q: 22. A mixture of natural gas and air is stable at room temperature. However, if a piece of metallic…

A: The substances that are employed to produce heat along with the liberation of other gases are termed…

Q: 5.125 The total volume of the Pacific Ocean is estimated to be7.2 × 108km3. A medium-sized atomic…

A: The given data contains, Total volume = 7.2×108 km3 Energy = 1.0×1015 J. Temperature = 1°C= 274.15 K…

Q: How much energy (in kJ) is released when 0.750 moles of NaOH react in excess HCl?

A:

Q: How many grams of oxygen must combust to produce 20 kJ of energy?

A: The combustion reaction is,

Q: Which process directly adds carbon into the atmosphere? CO2 OA. increasing plant populations OB.…

A: Carbon dioxide can be emitted to the atmosphere through various human activities. This results in…

Q: The gas used in separating the two uranium isotopes 235U and 238U has the formula UF6. If you added…

A: Concept: The branch of chemistry that deals with the structure, properties and the reaction of the…

Q: Calculate the mass equivalent of the energy released by the complete combustion of 2 mol of methane…

A: Given, Number of moles of Methane = 2 mole  Energy released for the combustion of methane = 1780 KJ…

Q: It requires 1200 kg of coal to produce the energy needed to make 1.0 kg of aluminum metal. If a…

A: A single soda can requires approximately 15 g of aluminum. The mass of aluminum required to produce…

Q: Given the following, how much heat is evolved when 0.025 m3 of CH6N2 is combusted at STP?

A: Combustion reaction is the reaction of any fuel or substance in presence of oxygen to form carbon…

Q: How is electricity generated in a photovoltaic system?

A: Interpretation: How is electricity generated in a photovoltaic system is to be determined.

Q: Complete and balance the following equations. U

A: Balanced reaction has same number of atoms of elements on reactants and products side

Q: Calculate the amount of mass in nanograms that is changed into energy when one mole of liquid water…

A:

Q: Describe how the potential energy of uranium is converted into electrical energy in a nuclear power…

A: The heat produced from the nuclear fission reaction is carried by nuclear reactor coolant and send…

Q: What is the energy change when the temperature of 14.9 grams of gaseous hydrogen is increased from…

A: Given- Mass of hydrogen = 14.9 g Initial temperature = 23.5 oC Final temperature = 37.6 oC To find-…

Q: What is the energy change when the temperature of 13.3 grams of solid copper is decreased from 37.5…

A: The energy change or heat required to raise the temperature of a substance can be expressed as :

Q: Choose from the types of sources of energy Fossil fuels Geothermal energy H

A: Energy is required to do work, and there are various sources of energy like geothermal energy,…

Q: Use Einstein’s equation, the mass in grams of 1 amu, andthe relation between electron volts and…

A: Given: Mass difference, ∆m = 1amu Energy equivalent of a mass difference of 1amu is calculated as…

Q: How does the energy transport in the Earth accomplished? Explain the three major mechanisms.

A: Energy is transmitted between the surface and the atmosphere, through radiation, conduction and…

Q: How does the ground temperature in sunlight with CO2 compare with ground temperature in sunlight…

A: Given : To explain effect of CO2 on temperature of earth.

Q: How much energy is needed for the reaction of 1.22 moles of H3BO3 with 5.67 moles of hydrogen

A: 2H3BO3  + 6H2 -----> B2H6 + 6H2O ∆H reaction = 493 kJ 1.22 moles of H3BO3 with 5.67 moles of…

Q: If 24.85 grams of H 20 (1) at 0.00°C is heated to a final temperature of 27.6°C, how much energy was…

A: Energy added to the system is equal to the heat required for that procedure.  q = m.s.∆t q = amount…

Q: Calculate the mass equivalent of the energy released by the complete combustion of 5 mol of methane…

A: Introduction :  Mass equivalent energy can be defined as the mass which is the form of energy that…

Q: What is the natural source of N20 in the atmosphere?

A:

Q: Write the balanced nuclear reaction for the decay of iodine-137 to xenon-137.     Write the balanced…

A: Introduction : In a nuclear decay reaction  total mass number , atomic number of reactant side will…

Q: How much energy is required to raise the temperature of 14.7 grams of gaseous oxygen from 21.5 °C to…

A: The energy needed to raise the temperature of 14.7 g of oxygen from 21.5 degrees Celsius to 38.5…

Q: Calculate ΔE in kilojoules per mole for the following reaction:               Th → He + Ra Atomic…

A: The following formula will be applicable to solve for the answer. ∆E=∆m×c2 where, '∆E' is the change…

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: 5. How many grams of Calcium will it take to replace 1 gram of Hydrogen?

A: No of moles = Mass / Molar mass

Q: In a thermonuclear device, the pressure of 0.050 liters of gas within the bomb casing reaches…

A: Given, In a thermonuclear deviceinitial pressure of gas =4000000 atmand initial volume of gas =0.050…

Q: 1- Using the information in the table below, calculate the heat of released from the following…

A: Standard enthalpy of reaction: It is defined as the sum of standard enthalpies of products minus the…

Q: How much energy is produced in the creation of 5 grams of o by the process: 14y- a-H+7o (14N=…

A:

Q: 6CO2(g) + 6H2O(l) → C6H12O6(s) + 6O2(g) ΔH = +2803 kJ/mol Calculate the mass (in grams) of O2…

A: We are give the reaction involved n photosynthesis process: 6CO2(g) + 6H2O(l) → C6H12O6(s) + 6O2(g)…

Q: How much energy is released when 1.00 Mg of sulfur trioxide is produced by the following reaction 2…

A: Sulfur dioxide reacts with oxygen to form sulfur trioxide. The equation for the balanced chemical…

Q: According to the following reaction, how much energy is evolved during the reaction of 53.2 g Fe2O3…

A:

Q: 1. If you turn on the burner on a gas stove under a pan of cold water, energy moves from the burner…

A: This mode of transfer of energy is called conduction because there is direct supply of heat between…

Q: A test of an automobile engine exhaust revealed that 3.7g of NO2 was emitted in 10 minutes of…

A: Mass of gas emitted in 10 minutes of operation = 3.7 g  We need to determine moles of gas emitted in…

Q: write the nuclear equation for the radioactive decay of polonium -209 by alpha decay

A: Po - 209 does not decay by alpha decay reaction  But if u still want the reaction for Po-209 alpha…

Q: Where does the energy come from to evaporate the estimated425,000 km3 of water that annually leaves…

A: Since the sun is radiating heat every second by nuclear fusion of hydrogen nuclei into helium And…

Q: 11. How could we find whether there are substances that could support life on other planets?

A: The detailed solution of your question given below-- Since, we are mostly live in earth and know…

Q: The reaction of A to produce B by the reaction 2A + C → B is exothermic with a ΔH = -345 kJ.  If…

A: First we would calculate moles of A and energy released for thise moles of A.  Then we use energy…

Q: 10 Write the balanced nuclear equation for the radioactive decay of plutonium-239 by alpha emission

A: The balanced chemical equation is generally written by using law of mass conservation.Among…

Q: Compare nuclear energy to solar energy and fossil fuels in terms of safety and greenhouse gas…

A: Nuclear Energy - It is the energy derived from the fission and fusion of radioactive materials.…

Q: What are the formation mechanisms for NOx emission?

A: NOx is a representation of the oxides of nitrogen like NO and NO2. They are formed when nitrogen and…

Q: Calculate the mass equivalent of the energy released by the complete combustion of 4 mol of methane…

A:

Q: Suppose 4.57 g of C5H12 completely combusted. How many kJ of energy would be released? (207 kJ) е.

A: Given that, On combustion of 10g of C5H12 , 453 KJ of heat released.

Q: What is properties chemical and physical of ( Carbon -11 )

A: Isotopes generally have similar chemical and physical properties only there is single difference…