An unlit match contains approximately 1,000 J of chemical energy.When it burns , the match released thermal energy and light energy . After it has burned , the remaining match contains 250 J of chemical energy. If the thermal energy was measured to be 400 J , how much light energy did the match emit ?

Q: give chemical examples of The law of Conservation of Energy and Hess's Law

A: The explanation is given below-

Q: A local FM radio station broadcasts at a frequency of 90.8 MHz. ( 1 MHz = 106 s-¹) S Calculate the…

A: Here, we have to find the energy of the frequency 90.8 MHz.

Q: An average American consumes approximately 106 kJ of energy per day. The average life expectancy of…

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Q: Thermal Energy?

A: The total amount of kinetic energy within an object or sample is called Thermal energy.

Q: A microwave at 600 watts heats up a cup of water of 150ml from 20 degrees Celsius to 61 degrees…

A: The density of water is 1.0 g/mL. Therefore, mass of 150 mL water is 150 g.

Q: a.) Image 1 b.) Image 2

A: a.) First, the balanced equation for combustion of CH3OH is as follows, The ∆G0 value is first…

Q: Consider these reactions: Reaction 1: H2(g)+Cl2(g)⟶2HCl(g)ΔH=−184.6 kJ  Reaction 2:…

A: Consider the givenreactions: Reaction 1: H2(g)+ Cl2(g)⟶2HCl(g)    ΔH=−184.6 kJ  Reaction 2:…

Q: how many grams of water will form if 655 kJ of energy was released

A: Given :- CH4 (g)  + 2 O2 (g)  -->  CO2 (g) + 2H2O (g)       Δ H = -882 kJ/mol To calculate :-…

Q: A piece of silver with a mass 418 g has a heat capacity of 99.1 J/°C. What is the specific heat of…

A: Given, heat capcity 'c' of silver = 90.1 J/oC , mass of silver = 418 g, specific heat = ?

Q: In a calorimetry experiment, a 41.9 g piece of metal at 110. °C is put into a cup of cool water that…

A: GivenMass of water = 92.1 g = MInitial Temperature of water = Ti = 22.0°CFinal Temperature of water…

Q: How many joules of heat are required to raise the temperature of 200.0 g of water from 18.0°C to…

A: When supply of heat of Q to any substance of mass m increases its temperature  by Δt, then…

Q: Combustion of Ethane 2 C2 H6(g) + 7 O2(g) ----> 4 CO2(g) + 6 H2O (g) 1.The reaction represented by…

A:

Q: You are camping and wish to bake an apple crisp using your butane cooker. The crisp needs 1.5 x 103…

A: Answer:In this problem we have to find out the energy that can be produced by 100g butane and then…

Q: In metric terms, a typical automobile averages 5.76 km/L of gasoline burned. Gasoline has a heat of…

A:

Q: Question 2: You have two gasses at room temperature. The mass of each of the two gasses is the same.…

A: A question based on chemical thermodynamics. Two ideal gases that are put into the same container,…

Q: Calculate the energy, in joules, to heat a cube of gold with a volume in of 12.0cm^3 from 15 Celsius…

A:

Q: 1. A chemical reaction produces 210 J/g. How much energy is this in units of cal/lb?  1 pound = 16…

A: According to the question we have The energy of the reaction is given by = 210 J/g we have to…

Q: How many energy (in J) is lost when a sample of iron with a mass of 29.9g cools from 65.0 C to 26.0…

A: Specific heat capacity is the amount of heat that is required to rise a temperature of 1 kg…

Q: For numbers 38 and 39, use the data in the table below to answer the questions: AHor kJ mol 49.04…

A:

Q: Part A Assume that the kinetic energy of a 1150 kg car moving at 135 km/h could be converted…

A: First we would calculate kinetic energy of car , which would be value of heat.  Then we would use…

Q: Combustion of a 1.450 g sample of glucose yielded 23.01 KJ of heat. The calorimeter contained 1.900…

A: The final temperature will be 24.18°C.

Q: Consider these reactions: Reaction 1: H2(g)+Cl2(g)⟶2HCl(g)ΔH=−184.6 kJ Reaction 2:…

A:

Q: 4. Given the balanced equation representing a reaction: 2 Na(s) + Cl, (g) – 2 NaCI(s) + energy If 46…

A:

Q: What is the energy of system A? What is the energy of system B? In how many ways can the energy of…

A: we have given the two diagrams showing the energies (boxes) of each of four A particles and four B…

Q: energy

A:

Q: Pls help ASAP

A: Let velocity of one object be V1 And mass be m1 . Velocity of other object be V2 and mass be m2  So…

Q: Consider a cloudless day on which the sun shines down across the United States. If 2667 kJ of energy…

A: The unit of the quantity is converted into the desired unit by multiply or divide by the conversion…

Q: How much heat, in kJ, does it take to heat a 3 kg block of aluminum (specific heat capacity = 0.897…

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: A chemist measures the energy change AH during the following reaction: 2 Fe,O3(s) → 4 FeO(s)+O2(g)…

A: Exothermic reaction: If the energy is released in the reaction. Endothermic reaction: If the energy…

Q: A 0.82 g corn chip burns and heats 50 g of water from 22.1 degrees C to 27.8 degrees * C . If 0.23 g…

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Q: The First Law of Thermodynamics, known as Conservation of Energy, states that when energy is…

A: Explained as follows

Q: If 52 J of heat is added to an aluminum can with a mass of 29.1 g, what is the temperature change?…

A: