Which of the following types of energy is/are classified as potential energy? 1.Thermal energy 2.Energy stored in a spring 3.Gravitational energy A) 2 and 3 B) 1 only 2 only D 3 only 1, 2, and 3

Q: Classify the processes as endothermic or exothermic. Endothermic Exothermic

A: Endothermic                  Ice melting                          Baking a cake  the chemical…

Q: Convert between energy units. a. 231 cal to kJ b. 132 x 10* kJ to kcal d. 2.88 x 10* J to Cal c.…

A: Convert between energy units. (a) 231 cal to kj (b) 132 × 104 kj to kcal (c) 4.99 × 103 kj to kWh…

Q: Initial mass of food sample (g) 1.93 Final mass of food sample (g) 0.4: Initial temperature of water…

A: Given: Mass of Water =113.65g The initial temperature of water= 22.00 oC The final temperature of…

Q: Define The Nature of Energy?

A: Thermodynamic is the branch of chemistry that mainly deals with the heat transfer between system and…

Q: 11. An electric motor produces energy to turn a fan blade. The energy used to turn the fan blade is…

A: Answer

Q: Calculate the energy required to heat 860.0 g of water from 46.1 °C to 63.4 °C. Assume the specific…

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Q: A metallic radiator is made of 26.0 kg of iron, the specific heat of iron is 0.449 J/g°C. How much…

A: Given: Mass of Iron =26.0 kg =26000 g Temperature change, ∆T=(55.0-25.0)°C=30 °C The heat needed q…

Q: Explain potential and kinetic energy in chemical

A: This  question is related to topic of energy.

Q: Consider these reactions: Reaction 1: H2 (g) + Cl2 (g) 2HCI(g) AH =-184.6 kJ %3D Reaction 2: 20F2(g)…

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Q: Define energy and explain the importance of energy inchemistry

A: In simple terms energy is defined as the capacity for doing work. Energy can neither be created nor…

Q: 1. Melted methane was ignited and used to heat water in a thin metal container. After a short period…

A: Enthalpy of combustion is defined as the amount of heat released by burning of one mole of compound.

Q: Calculate the energy required to heat 1.90 kg of water from 35.1 °C to 49.1 °C. Assume the specific…

A: Specific Heat capacity is amount of heat required to increase the temperatures of one gram of…

Q: Determine the kinetic energy of an 88.0 kg body moving with an average speed of 52.6 m/s. 1.217 x…

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

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Q: Which energy transformation occurs with a toaster? (The toaster is plugged in and turned on) O a…

A: Introduction: Electric energy is one of the type of kinetic energy. The energy is produced due to…

Q: If 400 J of heat is given to a system and the system does 200J of work, what is the change in…

A: Answer:- This question is answered by using the simple concept of calculation of change in energy…

Q: A 65 kg person walking 6.5 km/hr requires 1390 kJ of energy per hour. How much further does he have…

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Q: 21. A turblne system Is used to produce electrical energy. Wires (electrical energy) Turbine…

A: As per conventions, maximum energy is present at the source. As we convert the energy at the source…

Q: Calculate the energy required to heat 1.70 kg of iron from -7.4 °C to 13.2 °C. Assume the specific…

A: Mass of metal =1.70 kg = 1700 g (1 kg = 1000 g)specific heat of iron = 0.449 J.g-1.K-1initial…

Q: Does 1L of water at 65° C have more, less or same quantity of energy as 1 mL of water at 65° C?…

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Q: Calculate the energy required to heat 330.0 mg of silver from -9.8 °C to 12.9 °C. Assume the…

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Q: A sample of aluminum metal absorbs 10.3 J of heat, upon which the temperature of the sample…

A: Heat absorbed by aluminum metal (q) =10.3 J Change in Temperature(Δ T)  = 30.5°C — 23.2°C   = 7.3 °…

Q: Quantity Mass of can (g) 12.695 mass of can and water (g) 125.129 Initial mass of food sample (g)…

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Q: 155 Joules of heat is added to a system that performs 63 Joules of work.  Determine the internal…

A: Heat supplied to the system=155Joules Work done =63 Joule we have to find the internal energy change…

Q: A change in a system occurs such that 92. J of heat flows from the system to the surroundings and…

A: Given data :- Change in Heat (∆q) = 92.7 joule Work(w) =14.2 joule Change in internal energy (∆U) =…

Q: 19. An ice cube is placed in a sealed insulated container of hot water at 80°C. After five minutes,…

A: According to law of mixture    Heat rejected by hot water is equal to heat gained by ice cube.

Q: A hot 105.0 g lump of an unknown substance initially at 152.2 °C is placed in 35.0 mL of water…

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Q: chemist carefully measures the amount of heat needed to raise the temperature of a 682.0 mg sample…

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Q: A system absorbs 140 J of heat from the surrounding and 85 J of work is done on the system by…

A: A system absorbs 140 J of heat from the surrounding and 85 J of work is done on the system by…

Q: A 100.0 g sample of metal is heated to 90.0 °C and placed in 110.0 g of water at 22.0 °C. The final…

A: The certain heat quantity needs to be transferred to any substance's known mass (amount) in order to…

Q: 1. A brass alloy contains 70g copper and 30g zinc. Find the percent by mass of each of the copper…

A: 1. Mass of copper = 70g  Mass of zinc = 30 g Total Alloy weight = 70g + 30 g = 100 g %mass of…