How much heat is needed to heat up 36 kg of hydrogen gas from 12.0C to 48.0C?

Q: How much heat is released by burning 32g of CH4? CH4(g) + 2O2 → CO2(g) + 2H2O(l)  ΔH=-891kJ

A: Given, CH4(g) + 2O2 → CO2(g) + 2H2O(l)   ΔH= -891kJ Note: (-) negative sign indicate the release of…

Q: A strip of aluminum weighing 0.789 g is heated from 26.1 C to 45.8 C. What is the amount of heat…

A:

Q: how many millimoles of ethanol would need to be burned to generate 8370 joules of energy? the heat…

A: Heat of combustion is defined as the heat released when 1 mole of reactant is combusted. Hence, heat…

Q: The complete combustion of a small wooden match produces approximately 512 cal of heat. How many…

A: Given, The approximate amount of heat produced by the combustion of a small wooden match = 512 cal…

Q: A 1.69 gram sample is heated to an initial temperature of 75 oC. The sample is then placed in a…

A:

Q: A block of unknown metal requires 50 kJ of heat to raise in temperature from 40 deg C to 50 deg C.…

A: Given Q1 = 50 KJ ∆T= final temperature - initial temperature      =  50- 40       = 10 Now by using…

Q: 5. The specific heat of aluminum is 0.89 J/g.°C. How much heat is required to raise the temperature…

A: Heat required to raise the temperature can be calculated using the specific heat capacity of…

Q: what is the anwser to  A student heats a 200 g sample of water from 20oC to 80oC. The specific heat…

A: The answer to the following question is-

Q: How much heat is released when 4.50 g of methane gas is burned in a constant-pressure system?

A: Given: Mass of methane = 4.50g To find: The amount of heat released

Q: How many kJ of heat are needed to raise the temperature of 2 kg of water from 35 °C to 86 °C?

A: Heat capacity or thermal capacity is a physical property of matter, defined as the amount of heat to…

Q: A sample of copper absorbs 43.6 kJ of heat, resulting in a temperature rise of 40.0°C, determine the…

A: From thermodynamics: q=m.c.∆T                                              . . . (1) Here, q is the…

Q: How much heat in joules is needed to raise the temperature of 4.5 L of water from 0°C to 89.0°C?

A: Formula for heat taken to change the temperature is:

Q: How much heat is released when a 260.0 g plate of copper tools from 5.30 x 10^2K to 20.0C?

A: The specific heat capacity for a given chemical substance or a solution refers to the amount of the…

Q: How much heat is required to raise the temperature of 250.0 g of lead by 52 degrees C?

A: We have given that  mass of lead = m =250g ∆T = 52°C specific heat for lead = C = 0.16 J/g°C To find…

Q: Propane, C3H8(g), is used in many instances to produce heat by burning: C3H8(g) + 5O2(g) → 3CO2(g)…

A: Given :-  C3H8(g) + 5O2(g) → 3CO2(g) + 4H2O(l)      ΔH = -2220. kJ  To calculate :-  Mass of O2…

Q: 6.117 What is the temperature of a 125-g sample of tin, initially at 26.2°C, if 155 J of heat is…

A:

Q: What temperature change will result if 200.0 grams of water absorb 800.0 Joules of heat ?

A: 200 grams of water absorb 800 joules of heat.Mass m = 200 gHeat q = 800 JWe need to calculate the…

Q: how many grams of iron

A:

Q: (d) Consider the complete combustion of Benzene (CeH6). If the density of benzene is 0.88 g/mL, what…

A: Given reaction is : 2C6H6 (l) + 15 O2 (g) ----------> 12CO2 (g) + 6H2O (g) , ΔH0rxn = -6278 KJ…

Q: What mass of natural gas (CH4) must burn to emit 267 kJ of heat?CH4(g) + 2 O2(g) ¡ CO2(g) + 2…

A: It is given that when 1 mole of methane is burned with 2 moles of oxygen to release carbon dioxide…

Q: 4. A 17.1-gram sample of Iron increases temperature from 25.0 °C to 110.0 °C. How much heat is…

A: The amount of Heat absorbed by the Iron can be calculated as -

Q: 4. What is the specific heat of iron, if it requires 1050 J of heat energy to raise the temperature…

A: Heat required = 1050 J Initial temperature = 10.0°C Final temperature= 20.4°C Change in temperature…

Q: How much heat will be released a 4.5 g of CH4 is burned. H= -802kJ/mol

A: Given data,  Mass of CH4 is burned = 4.5 g  Enthalpy , H = - 802 KJ/mol  Molar mass of CH4 = {12 +(4…

Q: How much energy is needed to heat 180g of water from 28oC to 95oC? The specific heat of water is…

A: The amount of heat required to increases the temperature of the 1 g of the substance by 1 degree is…

Q: How much heat is required to worm 19g of iron from 12•c to 84•c specific heat of iron is…

A: Here, we have to find the amount of heat that is required to warn 19 g of iron from 12 ∘C to 84 ∘C.…

Q: How many kilojoules of heat will raise the temperature of 1.50 kg of water from 22.00°C to 25.00°C?

A:

Q: On a mountaineering expedition, a climber heats water from 0°C to 50°C. Calculate the  mass of water…

A:

Q: 2. How much heat is needed to change the temperature of 4kg Iron from 15 °C to 28°C?

A:

Q: A 5.80-g sample of copper is heated from 55.0C to 75.0C. The amount of energy required to 23.20j .…

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

Q: 1.64 L of hydrochloric acid are mixed with 735 mL of ammonia in a calorimeter. The initial…

A: Solution - According to the question - Given - 1.64 L = 1.64 * 10000 = 1640 ml Total volume = 1640 +…

Q: How many kilojoules of heat are required to raise the temperature of 178 g of aluminum from 13.0˚C…

A:

Q: Calculate the total heat energy in joules needed to convert 20.0g of water from 30.0 c to -20.0c

A: q = mc∆T            m = mass  of water = 20.0 g             c = 4.184 J/g. oC…

Q: A small piece of metal is heated and placed in a foam cup calorimeter containing 50.0 mL of water at…

A: q= mc∆t Q= 522.2joule

Q: 4. An unknown substance requires 567 J of heat to increase its temperature from 0 to 15 °C. The…

A:

Q: Limestone, CaCO3, when subjected to a temperature of 900 C in a kiln, decomposes to calcium oxide…

A: Answer:

Q: Octane (112.224 g/mol) undergoes combustion to form carbon dioxide gas and water vapor: 2 C8H18 (l)…

A: Given, Octane (112.224 g/mol) undergoes combustion to form carbon dioxide gas and water vapor: 2…

Q: How many Joules of energy would be required to heat 35g of water from 23C to 29C?

A: Specific heat capacity of a substance can be defined as the amount of energy required to raise…

Q: A sample of water with a mass of 764.1g undergoes a temperature change from 41.23oC to 20.82oC. What…

A: Given : Mass of sample = 764.1 g Initial temperature = 41.23oC  Final temperature =20.82oC.

Q: How many joules are required to heat 340 grams of water from 25oC to 125oC?

A: Given: Mass (m) = 340 g = 0.340 kg Initial temperature (T1) = 25°C Final Temperature (T2) = 125°C

Q: A sample of aluminum metal absorbs 9.86 J of heat, and the temperature of the sample increases from…

A:

Q: heat capacity

A:

Q: How much heat energy is required to raise the temperature of 0.368kg of copper from 23.0 °C to 60°C?…

A: In the given question, the energy required to raise the temperature of 0.368 kg of copper from 23.0…

Q: A sample of copper absorbs 4.29E1 kJ of heat, resulting in a temperature rise of 6.79E1 °C.…

A:

Q: How many grams of water can be heated from 27.6°C to 38.9°C by the heat released from 71.3 g of lead…

A:

Q: Consider the combustion of in oxygen gas to produce carbon dioxide gas and water vapor. In an…

A: if 4790J energy absorbed by water that means energy is released by this combustion reaction. And…

Q: How much energy is used when 500.0g of water is heated from 12.5°C to 89.7°C?

A:

Q: A sample of copper absorbs 43.6 kJ of heat, resulting in a temperature rise of 75.0°C, determine the…

A: Heat (q) = 43.6 KJ  ....Or (because, 1 KJ = 1000 J). So,  = 43.6 KJ × (1000 J / 1KJ)  = 43600 J.…

Q: How much heat is required to raise the temperature of 3.90 g of water by 45°C

A: Given raise the temperature 45 degree celsius of 3.9g of water

Q: A 31.6 gram lead ball at 25.0 °C was heated with 56.3 joules of heat. What is the final temperature…

A:

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.    

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.